Entries |
Document | Title | Date |
20080198940 | SYSTEM AND METHOD FOR DATA TRANSMISSION BETWEEN A TRANSMITTER AND A RECEIVER ACROSS A TRANSMISSION LINE - A receiver transmits data to a driver over a differential pair line, during blanking periods, in a system employing low voltage differential signaling. | 08-21-2008 |
20080205531 | Adaptively configurable class-A/class-B transmit DAC for Transceiver emission and power consumption control - A power efficient and reduced electromagnetic interference (EMI) emissions transmitter for unshielded twisted pair (UTP) data communication applications. Transmit data is processed by a digital filter. The digital filter output data is converted to a current-mode analog waveform by a digital-to-analog converter (DAC). The digital filter is integrated with the DAC binary decoder in a memory device such as a ROM with time multiplexed output. DAC line driver cells are adaptively configurable to operate in either a class-A or a class-B mode depending on the desired operational modality. A discrete-time analog filter is integrated with the DAC line driver to provide additional EMI emissions suppression. An adaptive electronic transmission signal cancellation circuit separates transmit data from receive data in a bidirectional communication system operating in full duplex mode. For a multi-transmitter system, timing circuitry staggers the time base of each transmitter to reduce the aggregate EMI emissions of the multi-transmitter system. | 08-28-2008 |
20080212691 | Signalling Method and Apparatus - An electrical signalling system comprises a modulator arranged to accept information and encode that information in an alternating signal containing repeated rising and falling edges, the encoding being by way of the time between consecutive rising or consecutive falling edges, a transmission path for the signal from modulator to a demodulator, where the demodulator is arranged to detect the signal edge and store a record of the signal around that edge and compare a subsequent part of the signal with that record thereby to detect a like edge and detect the time difference between like edges. Such a system need not detect the precise position of the edge but detects that an edge has occurred within a short time frame, and retains an image of the signal during that period. That image is compared with a subsequent part of the signal, and where the subsequent signal differs only minimally from the record the system deems that a second like edge has occurred. Thus, although the precise position of the edge may or may not be detected by this system, the time delay between respective like edges is detected. The transmission path can be imperfect, for example inductive. The system is capable of sending recognisable signals along a three-phase electrical supply cable. The invention is particularly applicable to the supply of information from downhole sensors in the oil and gas extraction industries. Two signals can be sent simultaneously by also detecting unlike edges and the time difference therebetween. Multiple sources of data can be included consecutively. | 09-04-2008 |
20080219358 | METHOD FOR COMMUNICATING DATA AND CLOCK SIGNALS AND CORRESPONDING SIGNAL, TRANSMITTER AND RECEIVER - A clock signal constituted by pulses with given frequency of repetition and a data signal is able to assume two logic levels are transmitted simultaneously on a two-wire line in the form of a bipolar differential pulse signal with frequency of repetition of the pulses equal to the frequency of repetition of the pulses of the clock signal and in which the sign of the pulses of the pulse signal applied to said two-wire line varies according to the logic level of the data signal. | 09-11-2008 |
20080219359 | Method and system for reducing common mode noise interference in a differential communication channel - A data transmission method includes providing, by a current source, a current to the first conductor while isolating the second conductor from the current source, to thereby transmit a first binary digit; and, responsive to a command to transmit a second binary digit, (i) decreasing from a maximum value to zero an amount of the current provided to the first conductor and (ii) increasing from zero to a maximum value an amount of the current provided by the current source to the second conductor. The decreasing and the increasing are performed simultaneously, in such a manner that the amount of the current provided to the first conductor decreases at the same rate as the amount of the current provided to the second conductor increases, and such that each of a first signal corresponding to the current provided to the first conductor and a second signal corresponding to the current provided to the second conductor has a transition edge having a leading section, a midsection and a trailing section, with the midsection of the transition edge having an average slope that is greater than an average slope of the leading section of the transition edge and that is greater than an average slope of the trailing section of the transition edge. A system is provided which includes a switching system, which is operatively interposed between the current source and the differential communication channel, and a controller which is operative to issue one or more signals control signals to the switching system to implement the data transmission method. | 09-11-2008 |
20080232479 | ELECTRONIC DEVICE FOR THE TRANSPORT OF NUMERICAL INFORMATION - An electronic device designed to transport digital information (“0”, “1”) over long distances, including a transmitter generating current pulses and at least one assembly of receivers converting the received current pulses into logic pulses which are compatible with the operation of standard electronic logic circuits. Each receiver includes a pair of magnetoresistive stacks containing at least one hard ferromagnetic layer and one soft ferromagnetic layer separated by a non-ferromagnetic interlayer, the hard layer of each of the magnetoresistive stacks being pinned in a magnetic orientation perpendicular to an easy-magnetization axis which is used as a reference for the soft layer of the same stack. The soft layer of each magnetoresistive stack has a magnetic orientation which can be modulated by the magnetic field generated by current pulses delivered by the transmitter so as to cause modification of the transverse resistance of the stack sufficient to trigger an electrical signal. | 09-25-2008 |
20080260049 | SERIALIZER AND DESERIALIZER - A system and method of transmitting and receiving bit serial information is disclosed. In a differential embodiment, serial bits are transmitted by a pair of line-matched differential drivers that are ac coupled to a two-conductor transmission line. A receiver is ac coupled to the line and receives the transmitted serial information via a high pass filter. The receiver includes a level-triggered latch that provides a threshold for receiving the serial information, changes state to reflect the received information, and then clamps the received information to the state of the latch. In a single-ended embodiment, the ac-coupled receiver receives the bit serial information via a high pass filter. The resistance for the filter is an active device that also provides a voltage threshold for the receiver. The received bit serial information changes the state of a device which then alters the threshold, via hysteresis, for the net bit of serial information. | 10-23-2008 |
20080273601 | Communication Network Based on Master/Slave Architecture for Connecting Sensors and Actuators - A communications network for servo systems and the like comprises a controller, first and second slave nodes configured to respond to control signals from the controller and to send respective feedback control signals to the controller, and a control signal transmission line between the controller and the slave nodes; wherein communication between said controller and said slave nodes employs reflective signaling, and wherein the transmission line incorporates a router configured to route control signals from said controller to one or other of said first and second slave nodes in dependence on a further signal from said controller. | 11-06-2008 |
20080273602 | DATA TRANSMISSION APPARATUS WITH INFORMATION SKEW AND REDUNDANT CONTROL INFORMATION AND METHOD - Apparatus and methods provide at least redundant control information such as control symbols and control data over respective channels, such as differential lanes, and skew at least the redundant control information in time between the plurality of transmission circuits. Non-control information such as video and/or audio data may also be skewed. Corresponding receiver circuits and methods are also disclosed. | 11-06-2008 |
20080273603 | DIFFERENTIAL SIGNAL TRANSMITTING APPARATUS AND DIFFERENTIAL SIGNAL RECEIVING APPARATUS - A differential signal transmitting apparatus for transmitting a differential signal through two transmission lines. The apparatus includes: transmitting-side board connecting terminals | 11-06-2008 |
20080273604 | TRANSMISSION METHOD AND SYSTEM FOR THE DISCRETE MULTI-MODULATION DATA - A transmission method and system of the discrete multi-modulation data, the method includes: generating, at a transmitting side, a first bit table according to data to be transmitted, wherein items of the first bit table include carrying data information on each line during this data transmission; modulating and transmitting, at the transmitting side, the data according to the first bit table to a receiving side; and demodulating, at the receiving side, the received data according to the first bit table to obtain corresponding data. With the transmission method and system for discrete multi-modulation data provided in embodiments of the present invention, the line rate and the transmission power on lines can be dynamically and timely adjusted according to information ratio of the line transmission, by using a dynamic bit table (BIT table) to carry variable information on the data carried by lines, thereby saving power resource. | 11-06-2008 |
20080279289 | TRANSMITTER, RECEIVER, METHOD FOR TRANSMITTING, METHOD FOR RECEIVING, FIXED LENGTH SERIAL BURST DATA TRANSFER SYSTEM, SEMICONDUCTOR DEVICE, AND HYBRID SEMICONDUCTOR DEVICE - A transmitter included in a fixed length serial burst data transfer system in which the transmitter and a receiver are coupled to each other through at least two data transmission lines includes a two wire encoder encoding fixed length serial transmit data having binary digits to transmit data symbols each predetermined to correspond to each piece of the transmit data, inserting an identification symbol between the encoded transmit data symbols so as to be encoded to identify the transmit data symbols one from another, and transmitting the encoded transmit data to the receiver through the two data transmission lines during transmission, while transmitting a non-transmission symbol indicating a non-transmission state to the receiver through the two data transmission lines during non-transmission. | 11-13-2008 |
20080285661 | HIGH SPEED SERIAL LINK OUTPUT STAGE HAVING SELF ADAPTATION FOR VARIOUS IMPAIRMENTS - A high speed serial link structure and method are provided, comprising a data driver and a replica driver structure, the replica driver structure comprising a replica driver, a calibration engine and a peak level detector. The calibration engine compares a peak level detector output to a reference value and responsively performs a data driver adjustment, wherein the data driver adjustment comprises at least one of a driver biasing adjustment, a driver intermediate stage bandwidth adjustment and a driver equalization setting adjustment. In some embodiments, the calibration engine incorporates a comparator and a digital state machine; in other embodiments, it incorporates an analog operational amplifier. | 11-20-2008 |
20080292007 | POWER SAVING TECHNIQUES FOR A PARTIAL FUNCTIONALITY COMMUNICATION LINK - Power saving techniques for a device including an active mode of operation for transmitting a first data stream of at least two data types over wires, and a low power partial functionality mode of operation for transmitting a second data stream over a subset of the wires used for transmitting the first data stream. The power saving techniques may utilize different modulation schemes, different throughputs, different symbol rates, or other techniques. | 11-27-2008 |
20080298475 | CIRCUIT AND METHOD FOR BASELINE WANDERING COMPENSATION - A circuit and a method for baseline wandering compensation for solving the problem of baseline wandering in receivers of a communication system are provided. Two paths of baseline wandering compensation are provided on the basis of a slicer error. One of the paths adjusts a direct current (DC) bias of an input signal, and the other path adjusts the determining levels of the slicer, and thus, the present invention avoids input saturation of an analog-to-digital converter, enhances the signal-to-noise ratio, and achieves a precise baseline wandering compensation. | 12-04-2008 |
20080298476 | APPARATUS FOR ALL-DIGITAL SERIALIZER-DE-SERIALIZER AND ASSOCIATED METHODS - An all-digital serializer-de-serializer includes an all-digital clock multiplier unit (CMU) circuit, an all-digital clock and data recovery (CDR) circuit, a multiplexer (MUX), and a demultiplexer (DeMUX). The all-digital clock and data recovery (CDR) circuit couples to the all-digital clock multiplier unit (CMU) circuit. The multiplexer (MUX), couples to all-digital clock multiplier unit (CMU) circuit, and serializes data. The demultiplexer (DeMUX), couples to the all-digital clock and data recovery (CDR) circuit, and de-serializes data. | 12-04-2008 |
20080304577 | POWER-LINE COMMUNICATION METHOD, POWER-LINE COMMUNICATION DEVICE, AND POWER-LINE COMMUNICATION SYSTEM - To provide a power-line communication method, a power-line communication device, and a power-line communication system, which can make communication with high communication efficiency even when the condition of a power line is changed. In step S | 12-11-2008 |
20080304578 | TRANSMISSION CABLE - A transmission cable that has three signal lines, and in which there is little unwanted radiation noise, is provided. In a section that is perpendicular to the longitudinal direction of the differential transmission cable, the distance between any two signal lines of the three signal lines is equal to a predetermined value. The differential transmission cable is twisted in its longitudinal direction. The differential transmission cable further includes a dielectric core line, and the signal lines are formed on the surface of the dielectric core line. In the differential transmission cable, the signal lines are formed in a helix in the longitudinal direction of the dielectric core line. | 12-11-2008 |
20080304579 | Apparatus and method for automatic polarity swap in a communications system - An automatic polarity swap is implemented in a communications system. Two or more transceivers having differential inputs and outputs are coupled together through an interface, such as a backplane to form a communications system. In such a configuration, it is possible to cross-connect the differential data lines or signals at the interface, which will cause invalid data words to received at the second transceiver. Accordingly, the present invention includes an error check and correction module that detects invalid data words after parallel-to-serial conversion. More specifically, an error check determines if the parallel differential signal represents a valid data word. This can be done, for example, by storing and comparing valid data words in a memory such as RAM. If the received data word is valid, then no corrective action is taken. However, if the received data word is invalid, then the parallel differential signal is inverted using a logic circuit, which will correct the error if it is due to cross-connection of the differential lines at the interface or anywhere else. | 12-11-2008 |
20080310520 | Transmission Links - A method includes providing first values depending on crosstalk among a plurality of transmission links. A number of crosstalk channels are selected from a plurality of crosstalk channels interfering with signal transmission on transmissions links. The selecting depends on the first values. | 12-18-2008 |
20080310521 | Signal transmission circuit and signal transmission system - A signal transmission circuit includes a transmitting circuit for outputting a transmitting signal to a transmission line, a parallel circuit including a capacitor and a first resistance connected between an output terminal of the transmitting circuit and the transmission line, and a series circuit including an inductor and a second resistance connected between an output side of the parallel circuit and a ground. | 12-18-2008 |
20090003463 | OUTPUT BUFFER CIRCUIT, SIGNAL TRANSMISSION INTERFACE CIRCUIT AND APPARATUS - An output buffer circuit which transmits a logic signal to a transmission line includes a transmission pre-emphasis output circuit and a transmission pre-emphasis amount determination circuit. The transmission pre-emphasis output circuit controls a pre-emphasis amount according to an output signal from the transmission pre-emphasis amount determination circuit. The transmission pre-emphasis amount determination circuit adjusts a pre-emphasis amount and the number of pre-emphasis taps according to a pseudo loss control signal, controls a pre-emphasis amount of a transmission signal so that a signal amplitude is made smaller in a signal component with a high frequency than that of a signal component with a low frequency, and imparts signal degradation to a received waveform to realize transmission loss in a pseudo manner. | 01-01-2009 |
20090003464 | DIFFERENTIAL TRANSMISSION LINE CONNECTOR - A differential transmission line connector with little unwanted radiation noise is provided. A connector connects a differential transmission pattern for multiple transmission of a group of three differential signals and a differential transmission cable. The differential transmission pattern is provided with three signal lines, and the differential transmission cable also is provided with three signal lines. In a plane that is perpendicular to the longitudinal direction of the differential transmission pattern and the differential transmission cable, the signal lines are positioned at the apexes of an equilateral triangle. The connector is provided with three signal lines that connect, at identical lengths, the signal lines of the differential transmission pattern and the signal lines of the differential transmission cable, between a predetermined first plane of the planes that perpendicularly intersect the longitudinal direction of the differential transmission pattern and a predetermined second plane of the planes that perpendicularly intersect the longitudinal direction of the differential transmission cable. | 01-01-2009 |
20090041133 | COMMUNICATION PROTOCOL METHODS - Communication protocol methods for performing signal synchronization, data transmission, and data acknowledgement between a transmitting device and a receiving device are provided. The methods are characterized by a plurality of transmission lines which are used for performing signal synchronization, data transmission, and data acknowledgement by the communication protocol methods. | 02-12-2009 |
20090046785 | INTERFACE CIRCUIT - A transmission circuit ( | 02-19-2009 |
20090052559 | DIFFERENTIAL TRANSMITTER, DIFFERENTIAL RECEIVER, SIGNAL TRANSMITTER, AND SIGNAL TRANSMITTING SYSTEM - According to one embodiment of the present invention, it is possible to realize a signal transmitter which is capable of reducing power consumption and which can be easily designed. A differential transmitter block outputs differential output signals fixed to a predetermined logic signal to a differential receiver block and disconnects terminating resistors from a signal transmission path in an idle state. In the differential receiver block, a differential comparator outputs a logic determined by symbols of the differential output signal from the differential transmitter block, and an operating state detector detects the idle state upon detection that time successively outputting a predetermined logic by the differential comparator reaches a predetermined time, and controls switches so as to disconnect the terminating resistors from the signal transmitter in the receiving side upon detection of the idle state. | 02-26-2009 |
20090060060 | METHOD FOR TRANSMITTING A SIGNAL FROM A TRANSMITTER TO A RECEIVER IN A POWER LINE COMMUNICATION NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well. | 03-05-2009 |
20090060061 | COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A communication apparatus is connected to a transmission channel for transmitting data to another communication apparatus. The communication apparatus includes: a communication frame generator which generates a communication frame for storing the data; and a controller which controls to insert a pilot symbol into the communication frame based on a state of the transmission channel. | 03-05-2009 |
20090074085 | COMMUNICATION DEVICE, MULTI CARRIER TRANSMISSION SYSTEM, COMMUNICATION METHOD, AND RECORDING MEDIUM - The present invention provides a communication device that may suppress unnecessary break points. A communication device | 03-19-2009 |
20090110084 | RECEIVER TERMINATION CIRCUIT FOR A HIGH SPEED DIRECT CURRENT (DC) SERIAL LINK - A method for matching receiver and transmitter common-mode voltages for a high-speed direct current (DC) serial connection between the receiver and the transmitter includes measuring, at the receiver, a common-mode voltage of the transmitter. The common-mode voltage of the transmitter is an average of a voltage signal transmitted by the transmitter and received by the receiver. The method further includes comparing the common-mode voltage of the transmitter with a common-mode voltage of the receiver. The method further includes maintaining the common-mode voltage of the receiver at a first level at which the common-mode voltage of the receiver substantially matches the common-mode voltage of the transmitter. | 04-30-2009 |
20090110085 | HIGH BANDWIDTH DATA TRANSPORT SYSTEM - A method of data transmission includes representing data using at least one amplitude modulated impulse based on an ultra wideband impulse, sending the at least one impulse over an electrically conductive guided media, receiving the at least one impulse over the electrically conductive guided media, recovering the data from the at least one amplitude modulated impulse after receiving the at least one impulse over the electrically conductive guided media. The at least one impulse coexists on the electrically conductive guided media with wave based transmissions sent over the electrically conductive guided media. | 04-30-2009 |
20090116564 | LOW VOLTAGE DIFFERENTIAL SIGNALING TRANSMITTER AND TRANSMITTING METHOD - A low voltage differential signaling (LVDS) transmitter receives a data signal, a data invert signal and a plurality of logic signals. The LVDS transmitter includes a first-stage differential signaling transmitting circuit and a second-stage differential signaling transmitting circuit. The first-stage differential signaling transmitting circuit receives the data signal and the data invert signal and has a first output terminal and a second output terminal. The second-stage differential signaling transmitting circuit is controlled by the logic signals, and has a third output terminal and a fourth output terminal respectively connected to the first output terminal and the second output terminal, so as to generate a needed pre-emphasis signal. When no pre-emphasis signal needs to be generated, the second-stage differential signaling transmitting circuit is controlled to be in disabled state. | 05-07-2009 |
20090122880 | FILTER FOR BPL SIGNAL - A filter system for a broadband over power line system comprises a power line and a first line node and second line node of the broadband over power line system using the power line. The filter system also comprises a filter on the power line placed between the first and second line node, to attenuate a range of frequencies. Wherein the range of frequencies can be the entire range of mode frequencies used in the broadband over power lines system. | 05-14-2009 |
20090129485 | Structure for transmitter bandwidth optimization circuit - A design structure embodied in a machine-readable medium used in a design process provides a transmitter having a frequency response controllable in accordance with an operational parameter, and may include a storage operable to store operational parameters for controlling a frequency response of the transmitter under each of a plurality of corresponding operating conditions. A sensor can be used to detect an operating condition. In response to a change in the detected operating condition, a stored operational parameter corresponding to the detected operating condition can be used to control the frequency response of the transmitter. | 05-21-2009 |
20090141816 | Method of Transmission Power Control and Communication Device - In a method of transmission power control, transmission powers of transmission channels and/or transmission power spectral densities are adjusted so as to improve the transmission characteristics. | 06-04-2009 |
20090147862 | Semiconductor Device and IC Card Having The Same - An IC card ( | 06-11-2009 |
20090147863 | Input signal combiner system and method - Disclosed are various embodiments of an input signal combiner. In one embodiment, a receive stage receives a multi-phase waveform and separates the multi-phase waveform into a plurality of waveforms. Analog-to-digital converters convert the plurality of analog waveforms into at least one digital signal. At least one gain stage adjusts an amplitude of each of the digital signals and combines the amplitude adjusted digital signals into at least one gain adjusted combined signal. A signal extraction stage extracts an inbound signal from the at least one gain adjusted combined signal according to a demodulation scheme. | 06-11-2009 |
20090147864 | HDMI communication over twisted pairs - A method of transmitting a data stream over a communication channel, the method comprising: providing symbol sets having different numbers of symbols; modulating data in the data stream that warrant different degrees of protection against noise onto symbols from symbol sets having different numbers of symbols, wherein which symbol set given data in the stream is modulated onto is independent of symbol sets onto which other data in the data stream is modulated onto; and transmitting the symbols. | 06-11-2009 |
20090154573 | Signal Demodulation - A method for processing an analog composite signal in a system has the steps of receiving a composite signal with at least one first signal component and at least one interfering signal component; filtering the composite signal with a filter having a transfer function H(s); sampling the filtered composite signal in periodic intervals wherein each periodic interval has n samples; forming a matrix equation representing the composite signal wherein the matrix equation has a signal vector with the at least first one signal component and the at least one interfering signal component and a matrix comprising weighted coefficients; solving the matrix equation to determine the at least one signal component; outputting the at least one signal component. | 06-18-2009 |
20090168905 | Decoding of LVDS Protocols - An embodiment of the invention is directed to a system for processing a plurality of encoded signals carrying data. The system includes an electronic circuit configured to receive the encoded signals from one or more external devices, wherein the data are encoded in the encoded signals according to one or more of a plurality of protocols. The system further includes a processor configured to receive the encoded signals from the electronic circuit, and to extract the data from the encoded signals by decoding the encoded signals. The processor is configured to perform decoding according to the plurality of protocols. | 07-02-2009 |
20090190673 | Power line communication apparatus, integrated circuit for power line communication and transmission/reception methods - Transmitter | 07-30-2009 |
20090190674 | METHOD AND APPARATUS TO INJECT NOISE IN A NETWORK SYSTEM - An apparatus, system, and method are disclosed for injecting noise onto a link of a network. The apparatus, system, and method include, providing a noise injector card, connecting the noise injector card to the link, receiving a control signal to activate the noise injector card, switching a switch of the noise injector card, and injecting noise onto the link. | 07-30-2009 |
20090202003 | COMPENSATION OF ETHERNET TRANSMIT BASELINE WANDER - Compensation of transmit baseline wander in data transmission on a network. In one aspect, compensating for baseline wander includes receiving a signal to be transmitted by a transmitter, where the transmitter is operable with a higher-speed transmission standard requiring magnetics a first open circuit inductance. The signal is processed to compensate for a transmit baseline wander in the signal, the transmit baseline wander associated with a lower-speed transmission standard that requires magnetics with a second open circuit inductance that is higher than the first open circuit inductance. The processed signal is to be provided for transmission on a twisted pair cable of the network. | 08-13-2009 |
20090207922 | POWER LINE COMMUNICATION APPARATUS, POWER LINE COMMUNICATION SYSTEM, AND REGISTRATION PROCESSING METHOD - A power line communication apparatus controls a transmission using a plurality of parameters. The power line communication apparatus includes: a registration processor which performs a registration process for achieving a state to be communicable with another power line communication apparatus through a power line by use of transmission data based on a first parameter set at a first value and a second parameter set at a second value, a parameter controller which changes the first parameter to the third value to lengthen a communicable distance and the second parameter to the fourth value to shorten the communicable distance when the registration process has ended in failure. When the registration process has ended in failure, the registration processor retry the registration process by use of transmission data based on the first parameter set at a third value and the second parameter set at a fourth value. | 08-20-2009 |
20090213941 | METHOD AND DEVICE FOR IMPLEMENTING DATA TRANSMISSION - A method of implementing data transmission is provided, which comprises: A) comparing bit by bit data to be transmitted currently with previous transmitted data, and counting to obtain total number of different bits; and B) when it is determined that the total number of different bits is more than a half of number of bits of the data to be transmitted currently, inverting the data to be transmitted currently and then converting the inverted data into a differential signal for transmission. A device of implementing data transmission is also provided. The method and device provided by embodiments of the present invention can minimize electromagnetic interference during data transmission. | 08-27-2009 |
20090220013 | Low-cost connector apparatus and methods for use in high-speed data applications - Low-cost connector apparatus for passing electrical signals from one device over another via a cable. In one embodiment, the connector apparatus comprises a coaxial type connector that mates with a host device, such as via the motherboard thereof. In one variant, the connector further comprises a plurality of electrical components including an integrated circuit adapted to condition (e.g., equalize) the signals being transmitted over the cable. The connector (and hence internal electrical components) is shielded so as to mitigate the effects of EMI or RFI on the host device circuitry itself. In another variant, the signals comprise IEEE-Std. 1394 “FireWire” high speed data signals, and the use of the shielded connector in the signal pathway allows the use of lower cost cabling than would otherwise be required with a non-shielded (non-integrated) connector. | 09-03-2009 |
20090225873 | Multiple Transmitter System and Method - Systems and methods of data transmission are disclosed. In an embodiment, at least two transmitters are selectively activated and at least one transmitter is deactivated at a serial interface to transmit data via at least two distinct lines. | 09-10-2009 |
20090245395 | TRANSMISSION CONTROL APPARATUS AND TRANSMISSION CONTROL METHOD - A transmission control apparatus detects worsening of an environmental condition of a transmission line for accommodating a plurality of circuits, and detects recovery of the environmental condition of the transmission line from the worsening. A first controller alters a transmission rate of data that is transmitted on the transmission line, from a first transmission rate to a second transmission rate, when the worsening of the environmental condition is detected, and which alters the transmission rate when the recovery of the environmental condition is detected. A second controller narrows down a bandwidth of a circuit of a lower priority when the bandwidth of any of the circuits having been accommodated by the transmission line becomes unaccommodatable because of the alteration of the transmission rate to the second transmission rate. | 10-01-2009 |
20090252235 | METHOD OF MODULATION MODE DETECTION FOR COMMUNICATION SYSTEM - A method of modulation mode detection for a communication system including at least a channel transmitting signals utilizing a target modulation mode is provided. The method includes: (a) selecting a default modulation mode for the channel; (b) estimating a timing frequency offset (TFO) of the channel of the communication system for obtaining at least a TFO value and storing the TFO value; (c) comparing the TFO value with a first predetermined value to generate a comparison result; and (d) determining whether the default modulation mode is substantially identical to the target modulation mode according to the comparison result. | 10-08-2009 |
20090257514 | SYSTEM AND METHOD FOR IMPROVING EQUALIZATION IN A HIGH SPEED SERDES ENVIRONMENT - A method and accompanying system are disclosed for tuning each channel of a high-speed SerDes link interface arranged in a configuration linking a local side to a remote side. The method includes transmitting a flow control packets from the local side to the remote side to change remote side transmission characteristics in a link channel; monitoring the bit error rate (BER) in the link channel; transferring additional flow control packets to adjust the remote side transmission characteristics; and processing the BER data at the local side to generate the remote side transmission characteristics for the link channel. | 10-15-2009 |
20090279617 | Signal transmission circuit - A signal transmission circuit is capable of reducing distortion that occurs during signal transmission. A digital output signal is transmitted from a terminal to a signal line via an output buffer circuit and an output impedance unit. The terminal is connected to an impedance variation unit via an impedance control unit. The impedance variation unit designates an impedance for terminating the signal line when the output data is changed from a high level H to a low level. A reflection occurring on the signal line can be prevented and a waveform distortion can be suppressed. | 11-12-2009 |
20090290649 | SIGNAL PROPAGATION CIRCUIT AND SIGNAL PROCESSING APPARATUS - There provided are a substrate, on which are formed a signal propagation path to propagate a signal from an input end, in which signal propagation path a terminating resistance coupled to an output end substantially matches impedance; and a transmission line formed in anon-contact manner with the signal propagation path at a position halfway trough the signal propagation path. This arrangement realizes high-sensitivity detection of electric signals. | 11-26-2009 |
20090290650 | TRANSMISSION LINE DIRECTIONAL COUPLING - Coupling signals to a transmission line over a plurality of taps includes coupling a first signal onto a transmission line at a first tap, coupling a second signal onto a transmission line at a second tap, and controlling a phase for at least a portion of the first signal relative to a phase for a corresponding portion of the second signal. | 11-26-2009 |
20090290651 | TRANSMITTERS FOR LOOP-BACK ADAPTIVE PRE-EMPHASIS DATA TRANSMISSION - Transmitters for data communication can include a pattern generator configured to generate parallel data stream composed of k bits, k being a natural number greater than 2, a serializer configured to convert the parallel data stream into a serial data stream, a pre-emphasis circuit configured to pre-emphasize the serial data stream based on a pre-emphasis control value, to transmit the pre-emphasized serial data stream to a receiver via a first transmission line, and a pre-emphasis controller configured to receive measured values of transmission errors of the pre-emphasized serial data stream from the receiver via a second transmission line, and configured to set the pre-emphasis control value corresponding to a minimum measured value of the transmission errors, to an optimum pre-emphasis control value. | 11-26-2009 |
20090296830 | SIGNAL RECEIVER FOR RECEIVING DIFFERENTIAL SIGNAL VIA TRANSMISSION LINE - A signal receiver includes: a receiving circuit that receives a differential signal via a transmission line, which includes a pair of signal wires for transmitting the differential signal; and an impedance control circuit that controls an input impedance so as to reduce a common mode noise. The impedance control circuit includes a detection element for detecting at least one of a voltage, a current and an electric power of the common mode noise. The impedance control circuit controls the input impedance in accordance with change of the at least one of the voltages the current and the electric power of the common mode noise. | 12-03-2009 |
20090304092 | Low offset input circuit and transmission system with the input circuit - A low offset input circuit and a signal transmission system which can accommodate a high-speed interface and achieve reduction of an offset voltage are provided. An offset voltage compensating circuit block | 12-10-2009 |
20090310688 | SYNCHRONIZATION POINT DETECTION METHOD AND POWER LINE COMMUNICATION APPARATUS - A method for detecting a synchronization point of an alternating power in comparing the alternating waveform with a threshold voltage is provided. The method includes the steps of detecting a rising point at which the voltage of the alternating waveform changes from a level lower than the threshold voltage to a level equal to or higher than the threshold voltage; detecting a falling point at which the voltage of the alternating waveform changes from a level equal to or higher than the threshold voltage to a level lower than the threshold voltage; measuring a first interval from the rising point to the falling point subsequent to the rising point; measuring a second interval from the falling point to the rising point subsequent to the falling point; and determining the synchronization point based on a difference between the length of the first interval and the length of the second interval. | 12-17-2009 |
20090316800 | Low speed access to dram - Embodiments provide access to a memory over a high speed serial link at slower speeds than the high speed serial links regular operation. An embodiment may comprise a memory apparatus with a differential receiver coupled to a protocol recognition circuit, a low speed receiving circuit that has a first receiver coupled with a first input of the differential receiver and a second receiver coupled with a second input of the differential receiver, wherein the low speed receiving circuit is coupled with the protocol recognition circuit, allowing the first and second receivers to access the protocol recognition block at a different frequency than the differential receiver. | 12-24-2009 |
20090323828 | INFORMATION PROCESSING APPARATUS AND SIGNAL DETERMINATION METHOD - There is provided an information processing apparatus, including a signal receiver that receives a signal encoded in such a way that a signal containing a first bit value and a second bit value, wherein the first bit value is represented by first amplitude values, the second value is represented by a second amplitude value, and polarity of the amplitude value is reversed in each period, a conversion processor that performs conversion to add a signal after being delayed by delaying an input signal by one period to the signal before being delayed on a signal received by the signal receiver, an inversion processor that performs inverse processing of the conversion on the signal output from the conversion processor, and an input data decoder that decodes an input data by determining the first and second values based on the amplitude value of the signal output from the inversion processor. | 12-31-2009 |
20090323829 | Multi-Wideband Communications over Power Lines - Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or from a communication node at two different frequencies simultaneously. These signals may be exchanged with different nodes and/or include independent data. In some embodiments, some of the wideband frequency ranges are above 30 MHz. | 12-31-2009 |
20090323830 | CURRENT MODE CIRCUITRY TO MODULATE A COMMON MODE VOLTAGE - In some embodiments, a chip includes transmitters to transmit differential signals on conductors; and current mode circuitry to selectively modulate a common mode voltage of the differential signals to communicate data. In other embodiments, a system includes a first chip to transmit first and second differential signals on conductors, and a second chip. The second chip includes receivers to receive the first and second differential signals from the conductors and provide received signals representative thereof, and current mode circuitry to selectively modulate a common mode voltage of either the first or second differential signals to communicate data and wherein the first chip includes common mode detection circuitry to detect changes in the common mode voltage. Other embodiments are described and claimed. | 12-31-2009 |
20100002778 | DATA TRANSFER SYSTEM - data transfer signal lines are provided between transmitting and receiving sides of data on n signal lines in order to reduce power consumption required for a data transfer even if the number of bits of data to be transferred increases. The transmitting side has an encoder for outputting a signal of a low potential to one signal line and a signal of a high potential to the other signal lines among the | 01-07-2010 |
20100014598 | ACTIVE COMPONENTS ON AN INTERNAL CABLE TO IMPROVE SIGNAL INTEGRITY - Disclosed is an internal cable system that communicates signals in an electronic device. The system uses a printed circuit board with active circuits that is connected to a standard communication cable. The printed circuit board is exposed to air flow from the cooling system of the electronic device for proper operation of the active components of the active circuits on the printed circuit board. The standard cable may include a SCSI internal cable or other similar signal communication cables. Signal integrity is enhanced using the active circuits that are mounted on the printed circuit board. Power is supplied to the printed circuit board through inactive conductors in the cable or conductors that would otherwise be used for grounding. | 01-21-2010 |
20100034297 | Communication apparatus, transmission line communication chip and communication method - A communication apparatus according to the present invention includes a power supply that acquires a supply voltage from a power line connected from outside, a transmission control unit that transmits a pilot signal and signals subsequent to the pilot signal to the power line, a pilot signal detection unit that detects pilot signals transmitted to the power line by other apparatuses, and a timing adjustment unit that adjusts transmission timing of the pilot signal of the communication apparatus in accordance with that of the pilot signals transmitted by the other apparatuses. | 02-11-2010 |
20100034298 | RAIL VEHICLE INTERNAL INFORMATION NETWORK DEVICE - A rail vehicle internal information network device has modulating transmission devices ( | 02-11-2010 |
20100046642 | POWER LINE COMMUNICATIONS COUPLER - A power line communications coupler for effecting signal coupling between electric signalling equipment and an electric power system, said coupler including a fuse coupleable to a power line of said electric power system; and a signal coupler in electrical communication with said fuse and being couplable to said signalling equipment. | 02-25-2010 |
20100054345 | High Speed Digital Galvanic Isolator with Integrated Low-Voltage Differential Signal Interface - Various types of high-speed digital galvanic isolators and corresponding integrated low voltage differential signal (“LVDS”) interfaces are disclosed herein. According to some embodiments, phantom power is provided to one side of a galvanic isolator from the other side of the isolator via a twisted pair cable with shielding interconnecting the two sides, and therefore eliminate the need to provide power to both sides of the galvanic isolator through different power supplies or by way of separate physical wiring being routed and connected to the two opposing sides of the isolator. Such phantom power supply configurations reduce cost, lower power consumption, and increase the number of engineering design options available in a device where high speed serial data communication with low noise are required. | 03-04-2010 |
20100054346 | Information Processing Apparatus, Signal Transmission Method and Decoding Method - There is provided an information processing apparatus, including a data encoding unit that generates an encoded signal in partial response mode having a transmission speed Fb by encoding input data; a clock signal addition unit that synchronously adds a clock signal at frequency Fb having an amplitude value larger than that of the encoded signal to the encoded signal generated by the data encoding unit; and a signal transmission unit that transmits the encoded signal obtained by the clock signal being added by the clock signal addition unit through a predetermined transmission line. | 03-04-2010 |
20100061467 | INFORMATION PROCESSING APPARATUS, ENCODING METHOD AND SIGNAL TRANSMISSION METHOD - There is provided an information processing apparatus including a data encoding unit that generates an encoded signal by encoding first input data based on CMI (Coded Mark Inversion) coding rules and encoding second input data using errors of the CMI coding rules, a clock signal addition unit that generates a transmission signal by synchronously adding a clock signal having an amplitude value larger than that of the encoded signal to the encoded signal generated by the data encoding unit, and a signal transmission unit that transmits the transmission signal generated by the clock signal addition unit. | 03-11-2010 |
20100067586 | Method and Apparatus for Transmitting Data With Reduced Coupling Noise - A first integrated circuit is coupled to a first connector. A second connector is coupled to the first connector through multiple conductors, in which alternating pairs of conductors are reversed. A second integrated circuit is coupled to the second connector through a second group of conductors. The first integrated circuit includes multiple differential drivers and the second integrated circuit includes multiple differential receivers. The inductive coupling coefficient of the first device is modified to be substantially the same as the inductive coupling coefficient of the second device. | 03-18-2010 |
20100080306 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, COMMUNICATION TERMINAL, AND COMMUNICATION SETTING METHOD - A communication device that can easily be added to a network is provided. Processing performed by the communication device for which manipulation for joining a communication network was performed includes the steps of the communication device sensing manipulation of a manipulation panel, performing network detection processing when there is a network that has already been registered, performing pairing processing when there is no registered network, and starting a master operation when there is no registered network. | 04-01-2010 |
20100091889 | Method and Apparatus to Select a Profile of a Digital Communication Line - A method of selecting a profile of a digital communication line includes determining a first throughput value of the digital communication line, the first throughput value associated with a first profile and determined based at least in part on a count of code violations. The method includes determining a second throughput value of the digital communication line that is associated with a second profile, the second throughput value determined based on the count of code violations. The method includes identifying a selected profile that has a greater corresponding throughput value. The first throughput value is greater than the second throughput value when the count of code violations is less than a threshold and the first throughput value is smaller than the second throughput value when the count of code violations is greater than the threshold. | 04-15-2010 |
20100104028 | Current segmentation circuit for optimizing output waveform for high speed data transmission interface - The present invention provides a current segmentation circuit for optimizing output waveform from high speed data transmission interface, which comprises a four current sources controlled by four switches to segment current so as to control the rising and falling time of the high speed transmission data, and to match the delay of the current control signal and the delay of the data, wherein the four current sources are I1, I2, I3 and I4, and the current control switches are K1, K2, K3 and K4, wherein I1+I2=I3+I4, wherein the switches K1 and K3 control the current I1/I3 to flow into DP/DM line, and the switches K2 and K4 control the current I2/I4 to flow into DP/DM line. The present invention can depress overshoot and eliminate turning point in the waveform. | 04-29-2010 |
20100104029 | INDEPENDENT LINK(S) OVER DIFFERENTIAL PAIRS USING COMMON-MODE SIGNALING - Methods and apparatuses for using single-ended common mode signaling, additional data can be transferred in backward, forward, and/or both directions over an existing differential pair connection without adding extra wire. | 04-29-2010 |
20100104030 | COMMUNICATIONS DEVICE AND COMMUNICATIONS METHOD - A communications device | 04-29-2010 |
20100111199 | Device and Method for Communicating over Power Lines - A method and device for communicating over a power line is provided. In one embodiment, the device includes a multiband media access control (MAC) layer configured to select one of a plurality of frequency bands for communication and a multiband physical layer configured to communicate directly with said multiband MAC layer and to communicate over the power line via any one of the plurality of frequency bands. The multiband MAC layer may include a power control module configured to provide information to said physical layer to control the transmission power of data transmitted by said physical layer and a modulation control module configured to select one of plurality of modulation schemes for data transmitted by said physical layer. The physical layer may include a plurality of physical drivers with each physical driver configured to transmit and/or receive data in a different one of the plurality of frequency bands. | 05-06-2010 |
20100111200 | SIGNAL TRANSMITTING APPARATUS PROVIDED WITH SIGNAL CORRECTION CIRCUIT FOR SUPPRESSING RADIATION OF ELECTROMAGNETIC WAVES BETWEEN TRANSMISSIN LINES - A voltage memory stores a signal level of a transmission signal from a signal generator at a timing of a clock signal, and outputs the transmission signal. A voltage difference detector detects a signal level of a transmission signal at a timing subsequent to the timing and detects a first signal level difference between the signal level and the signal level from the voltage memory. A maximum value detector, a voltage difference detector and bias voltage sources delay the transmission signal so as to keep a rise time of the transmission signal substantially within a predetermined value range by adding capacitances corresponding to the first signal level differences from the voltage difference detectors to transmission lines. | 05-06-2010 |
20100111201 | POWER LINE COMMUNICATION SYSTEM - A power line communication system which enables high quality communication, utilizing a pair of power lines | 05-06-2010 |
20100118983 | COMMUNICATION OVER A DC POWER LINE - A combined power and communication system, a transmitter, a receiver, and a method of communicating data over a power line are provided. A power supply is arranged to supply an output current to a power line and comprises a current source. The current source is arranged to supply a DC component to the output current and the power supply is further arranged to mod the output current according to a data signal. A load interface is arranged to receive a load at load terminals, to provide DC power from the power line to the load terminals, and to demodulate the current received from the power line to receive the data signal. | 05-13-2010 |
20100124288 | DETECTION OF OUTBOUND MESSAGE SIGNALS IN A POWER LINE TWO-WAY COMMUNICATIONS SYSTEM - Improvements in the detection of TWACS outbound message signals. A first improvement involves matching some (or all) of the intermediate points in an outbound preamble occurring between bits of the preamble currently being detected. This reduces the possibility of a false synchronization and therefore decreases the probability of missing outbound message signals. A second improvement is to require some or all of the known preamble bits to exceed a predetermined threshold where both the thresh-old and which bits are adjustable. An additional approach is using 4-8 additional buffers in a transponder to detect preamble patterns in the outbound message. Each half cycle of the outbound message waveform requires entering a bit only into the buffers active for the particular frame of reference in which the message is being transmitted, since only buffers for that frame of reference are employed. The process continues until all bits specified to be sent, based on the length of the outbound message, are extracted. A CRC is then performed for the message. Using this method eliminates the problem of inbound messages being detected as outbound messages, and the resulting “blindness” of the transponder. It further makes the transponders less sensitive to noise which currently causes the transponder to detect a preamble when there is none, resulting in a valid outbound message being missed. | 05-20-2010 |
20100124289 | TRANSMISSION SUPPRESSION - A transmission suppression apparatus includes a first modulator that converts a symbol to a waveform. The apparatus further includes a first non-linear filter, configured to at least partially compensate for non-linear distortions of a transmission signal path. The apparatus further includes a first medium coupling device for coupling signals to a communication medium. The apparatus further includes a second medium coupling device for coupling signals from the communication medium. The apparatus further includes summing circuitry with a first input connected to an output of the second medium coupling device. The apparatus further includes cancellation circuitry, connected to a second input of the summing circuit, that converts the symbol to an analog waveform that is substantially 180 degrees out of phase with the analog waveform encoding the symbol on the first input to the summing circuit. | 05-20-2010 |
20100142627 | COMMUNICATION APPARATUS - In a single-wire data communication characterized in that a data communication unit time is different in accordance with the polarity of a signal, a communication control time is dependent on a communication data pattern, and hence, the control of the whole system is difficult. A counter for counting a clock continues the counting until a count value thereby obtained reaches a predetermined upper limit value, retains the predetermined upper limit value as the count value until a next pulse is detected in a reception signal after the count value reaches the predetermined upper limit value, and initializes the count value when the next pulse is detected. A data value judger judges a data value depending on whether or not the pulse is detected during a period before the time when the count value reaches the predetermined upper limit value. | 06-10-2010 |
20100142628 | REMOTE ANTIJAMMING TRANSMISSION DEVICE AND METHOD FOR THE SAME - A remote antijamming transmission device and method for the same is provided. A signal current transmission line is between the host and the sub-machine arranged along a path of signal current transmission line and kept at a distance from the signal current transmission line. The sub-machine comprises a signal sensor component. The interval is a range where the signal sensor component may sense a signal current transmitted by the host connected to the sub-machine in a non-contact manner. Thus, no load effect is caused. The signal current transmitted by the host is not attenuated due to current bypass, so the effect of remote transmission is achieved. The transmission current in the signal current transmission line does not make the transmission signal to be attenuated even if the amount of sub-machines increases and then the current is divided. Unlimited amounts of sub-machines may be arranged near the signal current transmission line. | 06-10-2010 |
20100142629 | HIGH SPEED TRANSIENT ACTIVE PULL-UP I2C | 06-10-2010 |
20100166085 | LIN NETWORK, INTEGRATED CIRCUIT AND METHOD THEREFOR - A LIN network comprises a transmit driver for communicating on a single communication bus. A slope control module is operably coupled to a supply voltage and arranged to identify a voltage transition, and in response thereto and via control of the transmit driver selectively apply one of: a first voltage transition mode comprising a constant DV/DT slope transition, or a second voltage transition mode comprising a fixed time transition. | 07-01-2010 |
20100177829 | Receiving device including impedance control circuit and semiconductor device including impedance control circuit - A receiving device includes a receiving circuit and an impedance control circuit. The receiving circuit receives a signal transmitted through a communication line. The impedance control circuit is coupled with the receiving circuit and has a detecting part. The detecting part detects a physical value of the signal and the physical value includes at least one of a voltage, an electric current, and an electric power. The impedance control circuit changes an input impedance based on the detected value so that a ringing of the signal is reduced. | 07-15-2010 |
20100177830 | CONFIGURABLE PRE-EMPHASIS DRIVER WITH SELECTIVE CONSTANT AND ADJUSTABLE OUTPUT IMPEDANCE MODES - Embodiments of the invention are directed to a single driver that can be used to transmit data with configurable levels of pre-emphasis, and can have either a constant or adjustable driver output impendence, selectively. One embodiment, directed to a driver apparatus, is associated with a digital communication channel for transmitting data signals, wherein at least one of the signals includes a higher frequency component. The apparatus comprises a first sub-driver that has a constant output impedance, and is selectively configurable to implement two or more different levels of pre-emphasis. The apparatus further comprises one or more second sub-drivers. A set of connector elements are provided for connecting the first sub-driver and each of the second sub-drivers in parallel relationship with one another, so that the first sub-driver and each of the second sub-drivers all have inputs that respectively receive a specified driver apparatus input signal, and all have outputs that are connected together to selectively provide a specified driver apparatus output impedance. The apparatus further includes a device that is connected to selectively disable and enable each of the second sub-drivers. | 07-15-2010 |
20100183081 | GENERIC BUFFER CIRCUITS AND METHODS FOR OUT OF BAND SIGNALING - Circuits and methods for a differential signal interface for coupling differential signals at a first frequency on a pair of opposite polarity signals to a multiple gigabit transceiver with generic buffers for receiving, transmitting or transceiving out of band signals at a second frequency lower than the first frequency are disclosed. Termination networks are provided coupling generic input buffers to respective ones of the pair of opposite polarity signals for receiving out of band signals where the opposite polarity signals are placed at voltages so that the differential voltage between them is below a threshold voltage. Methods for providing generic buffers with multiple gigabit transceivers for receiving and transmitting out of band signals on a differential signal interface are provided. Out of band signals are received when the out of band signaling protocol is not known. | 07-22-2010 |
20100189185 | SIGNAL TRANSMISSION SYSTEM AND RECEIVING APPARATUS - A digital audio signal, a channel clock, and a bit clock are transmitted to the receiving apparatus via a pair of signal lines. The digital audio signal is input to a D/A converter via a first comparator. The channel clock and the bit clock are received, separated with first and second separation circuits, and input to the D/A converter via the second and third comparators. A reference electrical potential of the second comparator is corrected such that it becomes half or approximately half of an amplitude of the channel clock depending on an electrical potential change of the output of a second differential signal receiving circuit. A system clock is generated based on the bit clock. The digital audio signal is converted into the analog audio signal based on the channel clock, the bit clock, and the system clock, and then the converted analog audio signal is output. | 07-29-2010 |
20100189186 | SIGNAL LINE ROUTING TO REDUCE CROSSTALK EFFECTS - A signaling system is disclosed. The system includes a transmitter comprising an encoder to encode a data signal such that the encoded data signal has a balanced number of logical 1s and 0s. The system also includes a receiver having a decoder to decode the encoded data signal, and a link. The link is coupled between the transmitter and the receiver to route the encoded data signal. The link comprises three or more conductive lines that are routed along a path in parallel between the encoder and the decoder, and wherein the link comprises segments, each segment comprising a routing change to reorder proximity of at least one pair of lines relative to any adjacent segment, with a sufficient number of segments such that each line has each of the other lines of the link as a nearest neighbor over at least a portion of the path. | 07-29-2010 |
20100195744 | METHOD FOR TRANSMITTING A SIGNAL OVER A POWER LINE CHANNEL AND POWER LINE COMMUNICATION MODEM - A method for transmitting a signal over a power line channel and a corresponding power line communication modem, wherein the signal is OFDM-modulated on a set of sub-carriers, the sub-carriers being separated by a frequency separation. The method includes receiving a noise signal via the power line channel, determining respective signal values of the received noise signal within a plurality of fine frequency bands with a first resolution bandwidth, wherein the first resolution bandwidth is smaller than the frequency separation, determining a first disturbed frequency band of the plurality of fine frequency bands based on the respective signal values, and notching the signal in the first disturbed frequency band before transmitting the signal. | 08-05-2010 |
20100195745 | Dynamic Transmitter Noise Level Adjustment for Digital Subscriber Line Systems - An apparatus comprising an artificial noise (AN) controller coupled to a digital subscriber line (DSL) transmitter and configured to adjust an AN level for a signal transmitted by the DSL transmitter, wherein the AN level is adjusted based on an actual signal to noise ratio (SNR) of the signal from the receiver to achieve a desired SNR for the signal. Also disclosed is a method comprising maintaining a data rate in a line at about a desired level by adjusting an AN level in a transmitted signal based on a SNR of a received signal. | 08-05-2010 |
20100202541 | SIGNAL ENCODING FOR FREQUENCY DIVISION MULTIPLEXING ON TRANSMISSION LINES - A method of transmitting on a transmission line a set of carrier signals of which at least one component represents a respective data value and the carrier signals are of different frequencies ranging from a lowest frequency to a highest frequency, in which the respective component of each carrier above the lowest frequency is adjusted on transmission in accordance with a selected relationship between that respective component and the corresponding component of the next lower frequency so as to compensate for the frequency-dependent effect of the transmission line on those components. The components may be amplitudes. The relationship may be a ratio of the respective and corresponding components. Alternatively each respective component may be adjusted in accordance with a scaling factor dependent on the previous data value presented by the corresponding component of next lower carrier frequency, the scaling factor being a ratio between a predetermined value and the said corresponding component, the predetermined value depending on the said previous data value. The components may be phases and the phase of each carrier after the first may be set from the phase of the previous lower frequency carrier augmented by the ratio of the data value in bits and the number of bits that can be carried by the respective component. | 08-12-2010 |
20100226446 | COMMUNICATION APPARATUS - A communication apparatus has an A/D converter which converts an analog signal which was received, into a digital signal, a converter which converts a reception signal so as to enable handling of phase information, a carrier detector which detects presence or absence of the reception signal, a synchronous circuit which extract synchronization timing from the reception signal, an equalizer which corrects the reception signal so as to cancel influence of a transmission path, a transmission path estimator which estimates a state of a power line transmission path, and a judging unit which judges the reception signal, which was amended by the equalizer, by use of a threshold value. | 09-09-2010 |
20100232522 | INTERFACE CIRCUIT - A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a TMDS transmission line, an Ethernet™ signal is bidirectionally transmitted, and also, a SPDIF signal is transmitted from the sink device to the source device. The Ethernet™ signal bidirectionally transmitted between Ethernet™ transmitter/receiver circuits is differentially transmitted by an amplifier and is received by the amplifier. The SPDIF signal from a SPDIF transmitter circuit is common-mode transmitted from an adder and is received by the adder to be supplied to the SPDIF receiver circuit. | 09-16-2010 |
20100239028 | METHOD FOR TRANSMITTING PARALLELIZATION SIGNALS OF UNINTERRUPTIBLE POWER SUPPLIES - The present invention discloses a method for transmitting parallelization signals of uninterruptible power supplies, which firstly performs a serialization process on parallelization signals by a logic processing unit and then performs synchronous transmission of the parallelization signals of respective node units over a bus. The method for serial transmission of parallelization signals of uninterruptible power supplies according to the invention can be implemented with easy wiring and can achieve a strong anti-interference ability, ensure real time signal transmission over a guaranteed transmission distance and identify conveniently the failure of a parallelization line while satisfying fundamental transmission demands. | 09-23-2010 |
20100239029 | RECEIVING APPARATUS - A receiving apparatus includes: an electronic device; a connector provided to the electronic device; and a transmission cable connected to the connector. The electronic device includes a tuner unit that receives broadcast waves; and a differential signal processing unit that sends and receives data with the use of differential signals. The tuner unit and the differential signal processing unit are connected to the connector. The transmission cable includes at least two transmission lines that transmit differential signals, and the at least two transmission lines are capacitively coupled with each other at high frequency bands owing to capacitances among the at least two transmission lines. In addition, there is at least one common mode choke across two differential signal transmission lines inside the electronic device. | 09-23-2010 |
20100246693 | TRANSMISSION APPARATUS - A differential amplifier stage under a band design whereby a data signal at a maximum transfer rate among received waveforms is subjected to attenuation upon passing through a transmission line is not amplified, and a signal at a transfer rate half the maximum transfer rate is amplified. If it is determined that a signal whose amplitude is larger in value than a high reference voltage, the signal is determined as a signal “ | 09-30-2010 |
20100246694 | Integrated reception system - An integrated reception system includes an integrated antenna device and an integrated-signal processing device. The integrated antenna device fed with power from the integrated-signal processing device converts a high frequency signal received by an antenna for receiving a plurality of signals of different signal systems into a digital signal, demodulates the converted digital signal, multiplexes digital demodulated signals which are demodulated, modulates the high frequency signal based on the multiplexed demodulated signal, attenuates the modulated high frequency signal by a predetermined amount of attenuation, and outputs the attenuated signal. The integrated-signal processing device demodulates the high frequency signal, separates the demodulated signal into demodulated signals each digitized for each of the signal systems, and outputs the separated demodulated signal. | 09-30-2010 |
20100246695 | SIGNAL-POWERED INTEGRATED CIRCUIT WITH ESD PROTECTION - The invention provides a signal-powered integrated circuit (IC). The IC comprises an integrated circuit die including a ground node, a supply node, and a first terminal for receiving a digital data signal having data content and a predetermined energy. A receive buffer formed on the integrated circuit die is connected to the first terminal and capable of receiving the data content associated with the digital data signal. A rectifier is also formed on the integrated circuit die. The rectifier includes a first diode connected between the first terminal and the ground node and a second diode connected between the first terminal and the supply node. The rectifier is configured to rectify the digital data signal and pass at least a portion of the digital data signal's predetermined energy to the supply node. Each of the first and second diodes is capable of withstanding an ESD impulse. | 09-30-2010 |
20100254464 | METHOD AND DEVICE FOR DATA PROCESSING IN XDSL SYSTEM - A method and a device for data processing between a first network element connected via several lines to several second network elements. The method includes the following steps: (i) if a line is trained, at least one other line is switched to a first mode; and (ii) if the line has been trained, the at least one other line is free to switch to a second mode. | 10-07-2010 |
20100272192 | OFDM-Lite Architecture for HomePlug - A device for communicating digital data over power lines includes a power line interface for transmitting data over at least one band of frequencies. An orthogonal frequency division multiplexing (OFDM) modulation unit generates OFDM symbols using a set of tones for the frequency band. A preamble generation unit generates preamble sequences for the frequency band by using the set of tones used by the OFDM modulation unit. The tones used by the preamble generation unit have a constant magnitude, and a set of phases obtained by quantizing to a small alphabet the phase of a set of tones obtained by taking an IFFT of a portion of a preamble used by a non-interoperable powerline access device. The device may transmit on two or more bands using a sampling frequency clock, wherein a lower band clock frequency is equal to or an integer divisor of a higher band clock frequency. | 10-28-2010 |
20100284474 | TRANSMITTER CHANNEL THROUGHPUT IN AN INFORMATION NETWORK - Apparatus and methods for transmitting information over a home coax network. The apparatus and methods may involve a physical layer frequency domain signal preprocessor and a physical layer time domain signal transmitter. The transmitter may be configured to receive the signal from the preprocessor and transmit the signal over coax that is in radiofrequency communication with a plurality of network nodes, the transmitter having a first transmission channel and a second transmission channel. The signal may be received by a receiver on the network. The receiver may have a MAC-to-PHY interface that is configured to receive signals from single-transmission-channel transmitters. | 11-11-2010 |
20100290539 | INTERFACE CIRCUIT - A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a TMDS transmission line, an Ethernet™ signal is bidirectionally transmitted, and also, a SPDIF signal is transmitted from the sink device to the source device. The Ethernet™ signal bidirectionally transmitted between Ethernet™ transmitter/receiver circuits is differentially transmitted by an amplifier and is received by the amplifier. The SPDIF signal from a SPDIF transmitter circuit is common-mode transmitted from an adder and is received by the adder to be supplied to the SPDIF receiver circuit. | 11-18-2010 |
20100290540 | INTERFACE CIRCUIT - A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a TMDS transmission line, an Ethernet™ signal is bidirectionally transmitted, and also, a SPDIF signal is transmitted from the sink device to the source device. The Ethernet™ signal bidirectionally transmitted between Ethernet™ transmitter/receiver circuits is differentially transmitted by an amplifier and is received by the amplifier. The SPDIF signal from a SPDIF transmitter circuit is common-mode transmitted from an adder and is received by the adder to be supplied to the SPDIF receiver circuit. | 11-18-2010 |
20100290541 | INTERFACE CIRCUIT - A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a TMDS transmission line, an Ethernet™ signal is bidirectionally transmitted, and also, a SPDIF signal is transmitted from the sink device to the source device. The Ethernet™ signal bidirectionally transmitted between Ethernet™ transmitter/receiver circuits is differentially transmitted by an amplifier and is received by the amplifier. The SPDIF signal from a SPDIF transmitter circuit is common-mode transmitted from an adder and is received by the adder to be supplied to the SPDIF receiver circuit. | 11-18-2010 |
20100296589 | INFORMATION PROCESSING APPARATUS, ENCODING METHOD AND FRAME SYNCHRONIZATION METHOD - Provided is an information processing apparatus including a frame generator for generating a frame by adding, to data, a header indicating a beginning position of the data, an encoder for encoding the frame generated by the frame generator according to a specific coding scheme, and generating encoded data expressed by mutually different first and second-bits, a cycle changer for changing a coding cycle in a header section by controlling the encoder, and a line coding unit for performing line coding on the encoded data generated by the encoder, and generating an encoded signal which expresses the first-bit in a form of a plurality of first levels and the second-bit in a form of a plurality of second levels different from the first levels such that a same level does not occur consecutively and for which a polarity of the level is inverted every half cycle of a clock. | 11-25-2010 |
20100296590 | Communication device and method for detecting broadcast wave to be performed by communication device - A communication device includes a data communication unit that sends a communication signal, which is obtained by at least modulating transmission data, to a power line; a zero-crossing-point detector that detects a zero crossing point of an alternating voltage applied from the power line; a transmission unit that sends a coexistence signal to the power line in a coexistence region that starts at a time based on the zero crossing point, the coexistence signal having information for allowing systems to be present on the power line; a receiving unit that detects the coexistence signal from the power line in the coexistence region; a setting unit that sets a detection period for performing a detection operation for detecting a broadcast wave in accordance with the coexistence signal; and a broadcast-wave detector that detects a broadcast wave by performing frequency analysis on a signal on the power line in the detection period. | 11-25-2010 |
20100309992 | Device and System for Preserving, Transmitting and Receiving HDMI or A/V Signals Along a Power-Line Communication Network - A combination noise-filter, surge protections circuit and HDMI communication device. HDMI specific noise filters, surge protection circuits, PLC modem and encoding/decoding apparatus are connect to, or integrated into, power outlets in a home or other wired building enabling a high bandwidth powerline communication network. | 12-09-2010 |
20100316140 | TRANSMITTER AND METHOD FOR APPLYING MULTI-TONE OFDM BASED COMMUNICATIONS WITHIN A LOWER FREQUENCY RANGE - According to one embodiment of the invention, an integrated circuit comprises an encoding module, a modulation module and a spectral shaped module. The encoding module includes an interleaver that adapted to operate in a plurality of modes including a first mode, a second mod and a third mode. The interleaver performs repetitive encoding when placed in the second mode and even greater repetitive encoding when placed in the third mode. | 12-16-2010 |
20100316141 | Method and Apparatus for Extending Receiver-Biased Digital Links - A new design is shown for a digital link that does not require additional power for transmitter biasing when copper media a in receiver-biased digital link is replaced with an alternative link medium. This power savings can be crucial is certain applications, such as HDMI or DVI bus extension where the available power resources are highly constrained. | 12-16-2010 |
20100322322 | POWER-LINE CARRIER COMMUNICATION APPARATUS - The invention provides a power-line carrier communication apparatus including a transmission unit with a signal point mapping device for mapping a plurality of bit streams produced from transmission data, a wavelet inverse transforming device for modulating the respective sub-carriers by wavelet waveforms which are orthogonal to each other for producing temporal waveform series data, and a D/A converter for converting the temporal waveform series data into an analog temporal waveform series signal; and a reception unit with an A/D converter for obtaining sampling-series waveform data from a power-line communication signal, a wavelet transforming device for wavelet-transforming the sampling-series waveform data into signal point data of the respective sub-carriers, and a symbol judging device for judging bit streams mapped by the signal point mapping device by inverse-mapping a plurality of these signal point data, and for synthesizing the judged bit streams with each other as a reception data series. | 12-23-2010 |
20100329363 | Wake-Up Circuits, Devices and Methods for Galvanic Isolators - According to one embodiment, there is provided a method of reducing the amount of power consumed by a galvanic isolator. A transmitter transmits a wake-up signal to a receiver located across an isolation medium when the transmitter is ready or preparing to transmit data or power signals to a receiver, which is operably connected to a sensing circuit. The sensing circuit receives the wake-up signal through the isolation medium, which may be operably connected to and powered substantially continuously or intermittently by a first power source. In response to the sensing circuit receiving the wake-up signal, the receiver is powered up from a sleep mode to an operating mode. After a period of time t | 12-30-2010 |
20110002400 | METHOD OF TRANSMITTING A PACKET OF DIGITAL DATA OVER A POLY-PHASE POWER LINE AFFECTED BY IMPULSIVE NOISE - The method transmits a long packet of digital data over a poly-phase power line affected by impulsive noise synchronous with phase voltages. Instead of using very complicated coding schemes, starting from the knowledge of the typical power line scenario, useful information is transmitted where noise synchronous with the main signal is absent. Time-intervals of a known or estimated duration during which the poly-phase power line is affected by impulsive noise are determined, and dummy data during the time-intervals, and useful data during other time-intervals free from impulsive noise, are transmitted. | 01-06-2011 |
20110007824 | SYSTEM COMMUNICATION SYSTEMS AND METHODS FOR ELECTRIC VEHICLE POWER MANAGEMENT - A system and method that minimizes network traffic consumption in a power flow management system is described. A minimization system may include a network to communicate device information and power flow information between the power flow management system and the devices. The power flow management system reduces consumption of the traffic traversing the network via a network traffic consumption reduction technique. In addition, this application discloses a system and method for communications protocol translation in a power flow management system that includes networks which connect electric devices and electric power supplies. One network utilizes a communications protocol that is different from the communications protocol utilized by another network. A communications protocol translation device communicates with the networks, and formulates messages from one communications protocol to the other communications protocol. The reformulated messages pass from one network to another network. | 01-13-2011 |
20110026612 | RECEIVER FOR SIGNAL COMMUNICATION APPARATUS AND RELATED SIGNAL COMMUNICATION APPARATUS - A receiver of a signal communication apparatus; the apparatus including a transmitter adapted to transmit coded signals, the receiver for receiving the signal and a wireless interface interposed between the transmitter and the receiver and having a transmitting antenna and a receiving antenna. The receiver includes a decoder configured to decode the received signal and circuitry coupled to the receiving antenna and capable of triggering the decoder if the value of the received signal is outside a logical hysteresis having a first logic threshold having a value smaller than the value of the direct current component of the received signal and a second logic threshold having a value greater than the value of the direct current component of the received signal. | 02-03-2011 |
20110038425 | DIFFERENTIAL DATA TRANSFERRING SYSTEM AND METHOD USING THREE LEVEL VOLTAGES - A differential data transferring system and method uses three level voltages to simultaneously transfer three signals (for example, two data signals and one clock signal) across two transfer line sets (i.e., four transfer lines). Therefore, the differential data transferring method increases transferring efficiency by using fewer transfer lines. Also, according to the differential data transferring system and method, one of two transfer lines forming a transfer line set is controlled to a middle voltage level, while the other transfer line is controlled to either a high voltage or a low voltage. Accordingly, the voltage difference between the two transfer lines may be maintained at a constant amplitude. Additionally, the difference between first and second dividing voltages DC | 02-17-2011 |
20110038426 | TRANSMISSION SYSTEM AND TRANSMISSION METHOD - In order to optimize with high accuracy parameters that a fast I/F has, optimization by training is required. Regarding these parameters, their optimum values vary to an operating frequency band and a power supply voltage of the I/F. In order to lower the operating frequency band and lower the power supply voltage for reduction of power consumption, re-training that requires a time becomes needed. By obtaining in advance optimum combinations of the operating frequency band, the power supply voltage, and various parameters of the I/F for various parameters of the I/F and then by making a table with them, it is possible to optimize the parameters in a short time by referring to the table in optimizing the power supply voltage. By the optimization of the parameters in a short time being enabled, it is also possible to perform dynamic optimization during an operation of the device. | 02-17-2011 |
20110051819 | SYSTEM AND METHOD FOR TRANSMITTER ELECTROMAGNETIC INTERFERENCE (EMI) REDUCTION - A device for Electro-Magnetic Interference (EMI) reduction in an Ethernet system has an Ethernet compatible device. The Ethernet compatible device has a filter for adjusting a signal outputted by the Ethernet compatible device for EMI reduction. | 03-03-2011 |
20110058614 | Wi-Fi/BPL Dual Mode Repeaters for Power Line Networks - A method and apparatus for maintaining network connectivity over power lines is disclosed. Such network connectivity is maintained even if various customers are covered by different power line networks or if one or more power lines in a network are unavailable to transmit data. More particularly, in order to bridge a gap in a power line network, one or more messages are extracted from a first node in a power line network and are then transmitted to a second node via free space transmission, illustratively wireless radio frequency (RF) transmission conforming to one or more of the 802.11a, b or g standards. When those messages are received at the second node, the message is injected back into the power line on the other side of a gap in power line coverage. This method of transmission backup will continue until power line connectivity is restore upon which the preferred method will be selected and used. | 03-10-2011 |
20110069766 | METHOD OF COMMUNICATING WITH USING ELECTRIC POWER LINE FOR MOBILE BODY - A method of communicating with using an electric power line for a mobile body so that a first device transmits first information to a second device includes: coupling the first device with multiple first coupling points in an electric power line network; coupling the second device with multiple second coupling points; transmitting second information about transmission characteristics from the second device to the first device; modulating multiple transmission waves to be transmitted from the first device via the transmission points by the first device with using a transmission diversity method based on the second information; and demodulating multiple reception waves received by the second device via the reception points by the second device with using a reception diversity method. | 03-24-2011 |
20110075740 | Configurable Differential to Single Ended IO - An electronic system having a power efficient differential signal between a first and second electronic unit. A controller uses information, such as compliance with data transmission rate requirement and bit error rate (BER) versus a BER threshold to control power modes such that a minimal amount of power is required. Amplitude of transmission and single ended or differential transmission of data are examples of the power modes. The controller also factors in a failing phase in a differential signal in selecting a minimal power mode that satisfies the transmission rate requirement of the BER threshold. | 03-31-2011 |
20110096848 | "Supply-Less" HDMI Source Terminated Output Stage With Tuned Wide-Range Programmable Termination - A “supply-less” transmitter output stage is provided for a transmitter. This transmitter output stage can include a tunable source termination and a reference voltage generator. The tunable source termination can be coupled between a differential pair of the transmitter. The reference voltage generator can advantageously generate reference voltages from a far-end termination. These reference voltages provide a way of translating the internal supply voltage level to the pad voltage level to enable/disable the tunable source termination. Also, it provides a way to minimize leakage and minimize the junction stress of switching transistors in the tunable source termination as well as the transmitter. The dependency between the reference voltages and the far-end termination voltage makes this design more portable to other supply voltages and other technologies specifications other than HDMI. | 04-28-2011 |
20110116555 | POWER LINE COMMUNICATION METHODS AND DEVICES - A power line communication method for realizing data communication between at least one first or sending power line communication partner device and at least one second or receiving power line communication partner device. The method checks transmission conditions of a plurality of possible communication channels, thereby generating transmission condition data descriptive for the communication conditions of the respective possible communication channels. Additionally, communication conditions of the plurality of possible communication channels are selected as actual communication conditions based on the transmission condition data. | 05-19-2011 |
20110135014 | Transmission device for differential communication - In a transmission device for differential communication, a first cathode-side element part is coupled between a first communication line and a cathode-side power supply line, a second cathode-side element part is coupled between a second communication line and the cathode-side power supply line, a first anode-side element part is coupled between the first communication line and an anode-side power supply line, and a second anode-side element part is coupled between the second communication line and the anode-side power supply line. A driving portion drives the element parts based on transmission data input from an outside. A target potential generating portion generates target potentials of the element parts based on potentials of the first communication line and the second communication line. | 06-09-2011 |
20110150104 | COMMUNICATION APPARATUS, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD - A communication apparatus repeatedly outputs a first multi-carrier signal SS during predetermined periods T | 06-23-2011 |
20110150105 | COMMUNICATION APPARATUS, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD - A communication apparatus repeatedly outputs a first multi-carrier signal SS during predetermined periods T | 06-23-2011 |
20110182369 | INPUT/OUTPUT SIGNAL CONTROLLER AND INPUT/OUTPUT SIGNAL CONTROL SYSTEM EMPLOYING THE INPUT/OUTPUT CONTROLLER - A transmitting section | 07-28-2011 |
20110188584 | DIGITAL LOAD-SHARING TO ENHANCE THE REDUNDANCY AND FLEXIBILITY OF CHANNEL DISTRIBUTION IN A MULTIPLE-CHANNEL MULTIPLE-PORT CATV UPCONVERTER/MODULATOR - A method of channel-to-port assignment is described where the distribution of channels is performed in the digital domain of the CATV/QAM upconverter/modulator. This channel distribution allows for the possibility of simple failover, power combining of multiple outputs, and a fine granularity of channel to port mapping, QAM or analog channel, in a multi-port device. | 08-04-2011 |
20110194624 | PAIRING PLC DEVICES - A power line communication device includes a power line communication unit, a sensor to sense a physical connection to a second power line communication device other than via a powerline medium and a pairing unit to receive an indication of a physical connection between the power line communication device and the second power line communication device and to initiate a pairing process with the second power line communication device. A method of pairing communication devices which communicate along a non-data-cable medium includes sensing a data cable connection with a second device, entering an appropriate pairing state upon sensing the data cable connection, the pairing state being either an add device state or a join device state and performing pairing with the second device along the non-data-cable connection. | 08-11-2011 |
20110194625 | METHOD AND APPARATUS FOR GENERATING A PREAMBLE FOR USE IN CABLE TRANSMISSION SYSTEMS - A method and apparatus for generating a preamble for use in DVB-C2 cable transmission standard is provided. The preamble has multiple functions including frame timing, synchronization, frequency offset estimation, system information signaling and initial channel estimation. In accordance with an implementation, a complementary sequence is inserted as a header and the complementary sequence and system signaling bits are mapped into modulation symbols for transmission on allocated even channels only of the cable transmission system. | 08-11-2011 |
20110194626 | Multi-Wideband Communications Over Power Lines - Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or from a communication node at two different frequencies simultaneously. These signals may be exchanged with different nodes and/or include independent data. In some embodiments, some of the wideband frequency ranges are above 30 MHz. | 08-11-2011 |
20110200123 | METHOD AND SYSTEM FOR RADIO-FREQUENCY SIGNAL COUPLING TO MEDIUM TENSION POWER LINES WITH AUTO-TUNING DEVICE - In one aspect, the present invention comprises a method for tuning a power line communication inductive signal coupling device comprising a coupler and a plurality of capacitors, the method comprising: passing a carrier frequency signal through the coupler; sensing an amplitude of the signal; and switching the capacitors until the amplitude of the signal reaches a maximum. In various embodiments: (a) the signal is transmitted by a second transmitter, and the method further comprises switching to a first transmitter for data transmission; (b) the signal is received by a receiver after passing through the coupler; and (c) the capacitors are switched by a relay controller receiving commands from a microprocessor. | 08-18-2011 |
20110206140 | DEVICE FOR DETERMINING A COMMON-MODE SIGNAL IN A POWER LINE COMMUNICATION NETWORK - A device for determining a common-mode signal in a power line communication network. The device includes a first line, a second line, and a third line that are connected to a first terminal, to a second terminal, and to a third terminal, respectively. The first, the second, and the third terminal are configured to be connected to a phase line, a neutral line, and a protective ground line of the power line communication network, respectively. The device further includes a common-mode choke configured to couple out the common signal from the first, second, and third line, and the common-mode choke is connected to a termination impedance which is higher than an impedance of the power line communication network. | 08-25-2011 |
20110222611 | METHOD AND A SYSTEM FOR MANAGEMENT OF TRANSMISSION RESOURCES IN DIGITAL COMMUNICATION SYSTEMS - The present invention relates to a method for managing transmission resources in a digital communication system comprising an access network, such as a DSL system, implementing resource management for minimization of cross-talk interference in a cable or cable binder of the access network comprising a number, N of lines. It comprises the steps of: determining, by means of calculating means, for a respective of said lines, a relevant line set, comprising interference relevant lines, for said respective line, and applying, for the respective line, an algorithm for resource management using the determined relevant line set, thus reducing computational complexity of the resource management algorithm. | 09-15-2011 |
20110228860 | Multi-Value Logic Signaling in Multi-Functional Circuits - Methods and circuits provide function-appropriate signaling to multi-functional circuits on a constrained set of communication lines. A first communication line receives digital signals. The second communication line is employed for digital signaling related to a first function. In further steps, the method comprises initiating, based on a multi-value logic digital signal on the first communication line, an activation process that generates a second-function activation signal. Upon receipt of the second-function activation signal, the second communication line is employed for digital signaling related to a second function. Preferred activation processes involve monitoring the second communication line for a digital signature and sending the activation signal upon detection of an appropriate signature. | 09-22-2011 |
20110243254 | Communications interface to differential-pair cabling - Disclosed is a communications interface to connect to a first device and to establish a communication between the first device and a second device over a medium. The communications interface comprises at least one common mode choke having a first end configured to connect to an Ethernet transceiver of the first device. The communications interface further comprises an optional capacitor having a first end coupled to a second end of the at least one common mode choke and having a second end configured to connect to the medium. The communications interface does not include any transformers connected to the second end of the at least one common mode choke. The Ethernet communications is readily adaptable to differential-pair cabling and applications in harsh electromagnetic interference environments, such as automotive, aero-space, air crafts, water crafts, trains, railroad and marine applications, where high rejection of EMI is required. | 10-06-2011 |
20110243255 | Low-Noise Cable - Methods and apparatus for reducing the electromagnetic interference (EMI). The present invention is aimed at the reduction of the electric current flowing on the external surface of shields of cables made by a combination of shielded cables. In one embodiment the cable shields are electrically connected with each other in one or a plurality of positions along the cable, in order to reduce the current flowing on the cable shields, and a conducting connection externally to the jacket is provided, in order to connect an EMI filter. In a different embodiment the cable jacket is partially removed, in order to provide an electrical connection between all the shields and an external EMI filter. In a different embodiment the cable comprises quarter-wavelength sleeve chokes in order to reduce the shield common mode current at some particular frequencies. | 10-06-2011 |
20110255611 | Powered Patch Panel - A powered patch panel (PPP) is disclosed that inserts power in mid-span regions of a network and provides fault-tolerance at the power supply level and the power-plane level. Information such as physical location, port status and policy enforcement information may be locally stored and utilized by a processor of the PPP to achieve network control and monitoring. A network management system and/or element management system may be provided to interface with processors of PPPs to achieve network monitoring, control and policy enforcement goals. | 10-20-2011 |
20110268198 | DRIVER CIRCUIT, RECEIVER CIRCUIT, AND METHOD OF CONTROLLING A COMMUNICATIONS SYSTEM INCLUDING THE CIRCUITS - In a communications system for differential signals, a driver circuit is connected to a receiver circuit by a pair of differential signal lines. When data is not being transmitted, the differential signal lines are maintained at a predetermined electric potential, and when data is to be transferred, a differential signal is output at predetermined electric potentials. The receiver circuit switches between a power-down state and a normal state when detecting states of the electric potentials of the differential signal lines. | 11-03-2011 |
20110280322 | DATA TRANSMISSION SYSTEM CAPABLE OF TRANSMITTING INTERRUPT SIGNAL WITHOUT INTERRUPT GATE PERIOD - A data transmission system comprises: a pair of transmission lines connecting a plurality of apparatuses; a bridge termination resistor connected between the transmission lines and having a resistance value matching a differential impedance of the transmission lines; a first switch connecting the bridge termination resistor to the transmission lines when being turned on, and disconnecting the bridge termination resistor from the transmission lines when being turned off; pull-up/down resistors connected between the transmission lines and a fixed voltage node, and having resistance values respectively matching characteristic impedances of the transmission lines, the fixed voltage node being a power supply or a ground; and second switches connecting the pull-up/down resistors between the transmission lines and the fixed voltage node when being turned on, and disconnecting the pull-up/down resistors from the transmission lines when being turned off. | 11-17-2011 |
20110286534 | DATA COMMUNICATION SYSTEM AND DATA COMMUNICATION DEVICE - A carrier wave is generated by using a zero-cross point of an AC power source voltage as a reference timing, a data communication device connected to a first power line performs digital modulation with a normal-phase carrier wave, and a data communication device connected to a second power line near the first power line performs digital modulation with an anti-phase carrier wave. In this manner, unwanted radiation caused by a leak radio wave can be reduced while using power lines of two systems in independent data communication. | 11-24-2011 |
20120002732 | Single-Wire Asynchronous Serial Interface - The present invention discloses a single-wire asynchronous serial interface, and a method for transmitting commands and data through one transmission wire, wherein the transmission wire is capable of transmitting signals of three level states. The disclosed interface comprises a signal level extraction circuit receiving signals transmitted through the wire and outputting logic or functional bits according to the received signals; a clock extraction circuit generating clock signals according to the functional bits, and a memory circuit controlled by the clock signals and storing the logic bits. The disclosed method comprises: using two of the level states to represent logic 0 and logic 1, and the third of the states as a functional bit; and determining whether a group of signals is a command or data by the existence of a functional bit within the group. | 01-05-2012 |
20120014459 | Power Line Communication Networks and Methods employing Multiple Widebands - Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or from a communication node at two different frequencies simultaneously. These signals may be exchanged with different nodes and/or include independent data. In some embodiments, some of the wideband frequency ranges are above 30 MHz. | 01-19-2012 |
20120014460 | Compensation for Transmission Line Length Variation in a Serdes System - Described embodiments provide a method and system for signal compensation in a SERDES communication system that includes monitoring the quality of a data signal after passing through a transmission channel. The quality of the data signal is monitored with at least one of a BER calculation algorithm and a received eye quality monitoring algorithm. Variations in channel length of the transmission channel are compensated for by i) adjusting a length of transmission line delay of the data signal from the transmission channel, ii) comparing the data signal quality with a threshold for the adjusted data signal; and iii) repeating i) and ii) until the data signal quality meets the threshold. | 01-19-2012 |
20120020416 | FLEXIBLE CABLE AND TRANSMISSION SYSTEM - A flexible cable is provided in which a transmission characteristic can be ensured in a high frequency band, and electromagnetic noises can be suppressed. A flexible cable | 01-26-2012 |
20120033744 | METHOD FOR TRANSMITTING DISCRETE ELECTRICAL SIGNALS - The invention relates to methods for transmitting information, and specifically to communication interfaces of electronic devices. The method makes it possible to increase the permissible number of transmitters power-supplied from a communication line, raise the distance and reliability of communication, and obtain better conditions of signal reception from differently located transmitters owing to switching off the current of power supply of transmitters and, accordingly, separating the current of signal transmission from the total current running along the communication line. Each transmitter is provided with its internal secondary power supply charged from the communication line. The voltage of the communication line power supply is decreased prior to signal transmission and restored upon completion of signal transmission. | 02-09-2012 |
20120033745 | Power device and safety control method thereof - An air conditioner includes at least one indoor unit and a wired controller connected to the indoor unit through two lines to receive power from the indoor unit and to perform data communication with the indoor unit. Each of the indoor unit and the wired controller includes a communication unit that modulates a low-frequency communication signal into a high-frequency communication signal and transmits the high-frequency signal and demodulates a received high-frequency signal into a low-frequency signal. When a plurality of indoor units and a wired controller perform communication, a communication signal is transmitted after being modulated into a high-frequency signal and linking the high-frequency signal with DC power. This reduces the inductance of an inductor required to separate the linked high-frequency signal into DC power and a communication signal and the capacitance of a capacitor required to link the signal with DC power, reducing PCB size and inductor and capacitor costs. | 02-09-2012 |
20120033746 | CABLE SYSTEM WITH SELECTIVE DEVICE ACTIVATION FOR A VEHICLE - The present invention relates to a cable system ( | 02-09-2012 |
20120033747 | Systems and Methods for Powering Circuits for a Communications Interface - Embodiments include systems and methods of powering data communications transmitter circuitry using current sinked from biasing circuitry used to bias a transmission line between the data communications transmitter circuitry and data communications receiver circuitry. In some embodiments, the current sinked from the biasing circuitry is sourced by a power supply configured to power the data communications receiver circuitry. The current sinked from the biasing circuitry is then re-used to power the data communications transmitter circuitry. The data communications transmitter circuitry can be operated using less power overall than the prior art by re-using the current first used to bias the transmission line to power the data communications transmitter circuitry. Various embodiments include HDMI transceivers, DVI transceivers, and DisplayPort transceivers. | 02-09-2012 |
20120039400 | DIGITAL TWO WAY AUTOMATIC COMMUNICATION SYSTEM (TWACS) OUTBOUND RECEIVER AND METHOD - A receiver and method for a transponder of a two-way automatic communications system (TWACS) used by an electrical utility in which analog outbound messages are sent from the utility to a consumer and inbound, reply messages are sent from the consumer to the utility. The receiver and method enable a transponder to detect the outbound messages and include A/D conversion and digital processing for demodulating a digitized signal and providing the outbound message. | 02-16-2012 |
20120063518 | DEVICES, METHODS, AND SYSTEMS FOR BUILDING MONITORING - Devices, methods, and systems for building monitoring are described herein. One or more embodiments include a first transceiver coupled to a first phase of a power system of a building and configured to receive and send data over the first phase of the power system, a second transceiver coupled to a second phase of the power system and configured to receive and send data over the second phase of the power system, and a switch coupled to the first and second transceivers of the power system and configured to route data between the first and second transceivers of the power system. | 03-15-2012 |
20120076211 | Systems and Methods for Facilitating Power Line Communications - Systems and methods for facilitating power line communications are described. In some embodiments, a PLC device may detect the availability of a first frequency band as well the availability of a combination of a second frequency band with a third frequency band. The PLC device may then communicate with another PLC device using a frequency band selected as (a) at least a portion of a combination of the first, second, and third frequency bands, (b) at least a portion of the first frequency band, or (c) at least a portion of the combination of the second with third frequency bands. The PLC device may further transmit a message to a higher-level PLC apparatus (e.g., a domain master) over the power line using a device-based access mode, receive an instruction to switch to a domain-based access mode, and thereafter communicate with another PLC device using the domain-based access mode. | 03-29-2012 |
20120082245 | NETWORK BASEBAND SIGNAL TRANSMISSION APPARATUS USING AT LEAST TWO COAXIAL CABLES - An apparatus uses at least two coaxial cables to transmit network baseband signals, particularly Ethernet baseband signals. The apparatus includes a first transmission device and a second transmission device. The first transmission device includes a first conversion module that is capable of transmitting and receiving Ethernet baseband signals. The second transmission device includes a second conversion module that is capable of transmitting Ethernet baseband signals to the first conversion module and receiving Ethernet baseband signals from the first conversion module. The first and second conversion modules are connected through at least two coaxial cables for transmission of Ethernet baseband signals. Through transmission of network baseband signals through coaxial cables, the advantages of reducing costs and maintaining high efficiency of transmission can be realized. | 04-05-2012 |
20120093240 | INTERFERENCE DETECTION IN A POWERLINE COMMUNICATION NETWORK - A powerline communication (PLC) network can be subject to noise/interference resulting in loss of throughput and data corruption for PLC devices connected to the PLC network. A powerline interference analyzer can be implemented in the PLC network for detecting sources of the noise. The powerline interference analyzer can determine powerline network noise characteristics that are representative of noise on the PLC network and can analyze the powerline network noise characteristics to determine one or more noise patterns. The noise patterns can be compared with a plurality of predefined noise signatures that are representative of corresponding each of a plurality of noise sources. Consequently, at least one noise source that is associated with the noise patterns can be identified from the plurality of the noise sources. | 04-19-2012 |
20120093241 | DSL ALIEN NOISE REDUCTION - Alien noise is removed from one or more receptor DSL lines after self-FEXT has been eliminated or reduced. Information about the alien noise in the form of slicer errors can be obtained from one or more donor DSL lines that may or may not be in the same domain (e.g., a vectored DSL system). | 04-19-2012 |
20120099661 | POWER LINE COMMUNICATIONS APPARATUS - Apparatus and system for communicating data via a power line. The apparatus comprises a transmitter comprising a modulator for generating a second digital signal based on input data; a digital buffer for amplifying the second digital signal to generate a third digital signal; a filter for filtering the third digital signal to generate an analog output waveform; and a coupler for coupling the analog output waveform to the power line. | 04-26-2012 |
20120099662 | Communication Protocol Method And Apparatus For A Single Wire Device - The present invention is a noise tolerant communication protocol device and method where a clock signal input, triggers an internal delay clock in an integrated circuit. Data is presented to an input pin and sampled prior to the next external clock pulse based on the internal delay clock. A data pulse value is distinguished by input signal voltage level and not by pulse length. Sampling of data bits is deferred until a signal level is most likely stable, thereby avoiding sampling during periods around edges of changing data values. Therefore, error detection and correction circuitry is not required. A time reference pulse, produced by a bus master, is measured by the protocol device, in determine a data transmission rate by the master. The timing of sampling of input signaling from the master is determined by the protocol, device from measurement of the time reference pulse magnitude. | 04-26-2012 |
20120128078 | Power Quality Device Having Communication Interface - Systems and methods provide power quality devices that include a communication interface to establish communications with the computer. | 05-24-2012 |
20120128079 | Dynamic Transmit Power Control Method and Power Line Communication System - The present discloses a dynamic transmit power control method for a power line communication (PLC) system. The dynamic transmit power control method includes steps of collecting a data; and adjusting a compliant transmit power spectrum density (PSD) mask according to a non-flat transmit PSD mask and the data; wherein the compliant transmit PSD mask complies with the non-flat transmit PSD mask, which comprises a plurality of reference PSDs corresponding to a plurality of frequency bands. | 05-24-2012 |
20120128080 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING TIME BROADCASTING INFORMATION USING POWER LINE - In the present invention, time information is sent through a common power line in executing home automation devices or using various industrial equipments. In the power line broadcasting, a small amount of data, such as time information, is transmitted unidirectionally, and long-distance power line broadcasting can be possible using carriers of a low frequency band. time setting for various instruments is automatically performed in response to a power signal after a breakdown of electric current, making unnecessary a user's action to perform the time setting, and the existing power line can be used without change. | 05-24-2012 |
20120128081 | POWER LINE COMMUNICATION DEVICE, POWER SUPPLY CIRCUIT WITH COMMUNICATION FUNCTION, ELECTRICAL APPLIANCE, AND CONTROL AND MONITORING SYSTEM - To realize a transmission function of power line communication by a further simplified and cost-effective circuit configuration, in a PLC modem installed in an electric appliance such as a household electrical appliance. | 05-24-2012 |
20120134427 | METHOD OF TRANSMITTING SYMBOLS - A method of transmitting symbols of a digital transmission constellation from a set thereof, ordered from a smallest to a greatest number of bits per symbol, may include identifying a first constellation from the set that is configured to communicate with a threshold error rate and has a greatest signal-to-noise ratio smaller than a signal-to-noise ratio of a received signal. The method may also include identifying a second constellation from the set that corresponds to a constellation with a number of bits per symbol immediately greater than the first constellation. The method may further include determining first and second probabilities of use of the first and second constellations that would generate an expected number of erroneous bits corresponding to the threshold error rate. The method may further include transmitting a symbol with a constellation selected randomly between the first and second constellations according to the first and second probabilities, respectively. | 05-31-2012 |
20120147978 | CABLE REDUCTION - The present invention provides combining and separation circuitry, which allows multiple signals in different frequency bands to travel in either direction over a single cable and be combined and separated as desired. In one embodiment, the combining and separation circuitry includes first, second, third, and fourth ports. The first port is configured to send or receive signals in a first frequency band, the second port is configured to send or receive signals in a second frequency band, and the third port is configured to send or receive DC signals, baseband signals, or a combination thereof. The fourth port is configured to be coupled to a cable in which the signals in the first and second frequency bands, as well as the DC and/or baseband signals, can be sent in either direction. | 06-14-2012 |
20120155557 | SYSTEM AND METHOD FOR POWER GRID COMMUNICATION - A system and method of data communication for a power grid determines available wired and wireless modes of data transmission and the available routes in the available wired and wireless modes. A weight is allocated to each of the available route and a final route for communication is determined based on an objective function. | 06-21-2012 |
20120155558 | INTEGRATING DEVICE OF WIRELESS CHARGING AND WIRELESS NETWORK FUNCTION - An integrating device of wireless charging and wireless network function includes a power transforming module, a wireless power transmitting module and a wireless network communication module therein. The power transforming module is electrically connected to an external power source to receive and transform AC power into DC power, whereby the power transforming module supplies the DC power to the wireless power transmitting module and the wireless network communication module as working power simultaneously. The wireless power transmitting module receives the DC power to convert and generate a power signal, and the generated power signal is wirelessly transmitted to an outer electric device. | 06-21-2012 |
20120155559 | DATA TRANSMITTING CIRCUIT AND DATA COMMUNICATION APPARATUS - Disclosed herein are a data transmission circuit and a data communication device that transmit data using an Alternating Current (AC)-coupled transmission line. The data transmission circuit includes a data transmission unit for transmitting data via a transmission line having a single AC-coupled line or a plurality of AC-coupled lines. When transmitting data, the data transmission unit transmits the data via the transmission line by sequentially setting a first electric potential corresponding to the data and a second electric potential different from the first electric potential. When transitioning from data transmission mode to an idle state, the data transmission unit sets an intermediate electric potential between the first electric potential and the second electric potential. | 06-21-2012 |
20120170670 | OFDM SYMBOL STRUCTURE FOR POWER LINE COMMUNICATION - A method for packing data over a power line communication channel is disclosed herein. The method comprises packing data into symbol body, adding a first pad in front of the symbol body to form a full symbol and determining the time instance in which the peak absolute voltage point of the AC electric power occurs. And subsequently it is to send the full symbol through the power line in a manner synchronized with the time instance aforesaid. Based on the interference condition detection, the invention allows receiver side adaptation. | 07-05-2012 |
20120177132 | POWER LINE COMMUNICATIONS METHOD AND APPARATUS - Method for communication channel coordination between nodes, each node including at least one of a transmitter and a receiver, for transmitting and receiving signals over residential electrical cables. The residential electrical cables include at least one active wire, one neutral wire and one ground wire, at least two of the wires forming wire pairs. The method includes the procedures of, for a given one of the receiver, examining the transmitter in each one of the nodes which communicates with the receiver, selecting one of the examined transmitters as a primary transmitter, determining an optimal receive wire pair for the receiver to receive the signals transmitted between the primary transmitter and the receiver, informing all the examined transmitters of the determined optimal receive wire pair, and tracking at least one communication characteristic over the determined optimal receive wire pair. | 07-12-2012 |
20120177133 | CLOSED-CIRCUIT POWER LINE COMMUNICATION - A system for closed-circuit power line communication includes at least a first and second power line connected to at least one electrical device configured to receive a data signal. An auxiliary line is connected to the electrical devices to provide a ground connection, and at least one transmitter generates a first data signal for transmission over the first and second power lines, respectively, to the electrical device. A low-pass common-mode filter is connected to the first and second power lines to provide closed-circuit data communication between the transmitter and the electrical device, the filter comprising at least one coupling capacitor between said first and second power lines such that at least the polarities with respect to ground of said first data signals transmitted over the first and second power lines, respectively, are substantially similar. | 07-12-2012 |
20120183084 | MASTER COMMUNICATION DEVICE IN A POWER LINE COMMUNICATION SYSTEM AND SLAVE COMMUNICATION DEVICE IN A POWER LINE COMMUNICATION SYSTEM - A communication system includes communication protocols that allow a single network or multiple neighboring networks to increase resource sharing and reduce mutual interference and increase their overall throughput. Various protocols apply to homogenous networks in which all power line communication (PLC) devices of multiple networks are interoperable with respect to full power line communication in a common PHY and to heterogeneous networks having non-interoperable PLC networks which do not employ a common PHY. As to heterogeneous networks, a protocol herein enables coexistence via a special signaling scheme. In homogeneous networks, all nodes can communicate with each other using a common PHY, so that information about one PLC network can be transferred to another PLC network. In heterogeneous networks, not all PLC networks can exchange information using their own native PHY. | 07-19-2012 |
20120195384 | POWER LINE COMMUNICATION APPARATUS AND NOISE DETECTION METHOD THEREOF - A power line communication apparatus and a noise detection method that are capable of detecting noises periodically generated without extending the dynamic range of an A/D converter used therein. The power line communication apparatus according to an embodiment of the present invention includes: a power detection unit that detects powers in communication slots used for transmitting and receiving data via a power line; a channel (transmission line) estimation unit that estimates the condition of a transmission channel on the basis of a difference between an average power through unused slots that are not assigned for transmitting and receiving the data among the communication slots and instantaneous powers regarding the unused slots; and a periodicity determination unit that detects a noise that is periodically generated on the basis of the estimated condition of the transmission channel and an alternating-current cycle in the power line. | 08-02-2012 |
20120195385 | COMMUNICATIONS ON POWER SYSTEMS - A power and data supply system that includes circuitry for supplying power and data to an output via a common transmission line is provided. The circuitry comprises a DC power source, a data signal source, a modulator configured to generate a modulated signal in dependence on the data signal, and an inverter, wherein the inverter is controlled by the modulated signal, such that the inverter generates an AC signal for output to the transmission line. | 08-02-2012 |
20120201312 | POWER LINE COMMUNICATION APPARATUS INCLUDING AC POWER SOCKET - A power line communication apparatus ( | 08-09-2012 |
20120219074 | DATA TRANSMISSION SYSTEM BASED ON A POWER LINE - A data transmission system includes a sender, at least one receiver, a sender controller, and a receiver controller. The sender controller receives an AC signal from an AC power source via a first AC input port, receives data from the sender via a first data port, and processes the received AC signal according to the received data, and outputs a processed AC signal via a first AC output port. The receiver controller receives the processed AC signal from the sender controller via the second AC input port, powers the at least one receiver using the processed AC signal via the second AC output port, and converts the processed AC signal to corresponding data and transmits the data to the at least one receiver via a second data port. | 08-30-2012 |
20120219075 | Simultaneous Detection of Communications Signals on All Phases of a Multi-phase Power Distribution Network - A method of detecting a signal transmitted over one phase of a multi-phase power distribution system, components of the signal concurrently appearing on all phases of the system. The method includes detecting the components of each signal appearing on each phase, including neutral, of the system. Detected signals are provided to a signal processor which processes them to produce a detected signal which is a composite of all the components. The signals are combined by a weighted summation scheme that takes into account signal and noise correlation properties to simultaneously maximize signal strength and suppress noise. If other signals are present on other phases of the system, any resulting interference is canceled out from the detected signal to further improve the quality of the detected signal. | 08-30-2012 |
20120224645 | Device for Modifying an AC Voltage, AC Voltage Having a Superimposed Data Signal, Method for Data Transmission, Use of a Receiver and Communication Architecture - The invention relates to a device ( | 09-06-2012 |
20120243620 | METHOD AND APPARATUS FOR DIGITAL DATA TRANSMISSION - An expansion of known serial data links, for example ETHERNET, published in IEEE802.3, for directly transmitting random events without having to carry out synchronization with a clock signal or having to wait for a cyclical transmission time. Two different, random events are represented using two differently coded individual pulses and are transmitted in an event-controlled manner. A jitter-free latency of 45 ns between the event and its reception is possible over a line length of 8 m, for example. The expansion is particularly suitable for the short, digital data links between a node and a plurality of modules, as are required in modern electrical discharge machines, machine tools and similar electronic systems. | 09-27-2012 |
20120243621 | Multi-Wideband Communications over Multiple Mediums within a Network - A multi-network interface device comprises a powerline communications interface and at least one other non-power line communications interface configured to communicate over a network. The network may comprise mediums including powerlines, telephone lines, and/or coaxial cables. The multi-network interface device may receive a communications signal via a first medium and transmit the message via a second medium based on a quality of service (QoS) metric. | 09-27-2012 |
20120257682 | POWER LINE COMMUNICATIONS DURING SELECTED TIME INTERVALS - A method of power line communications includes obtaining timing information for an AC mains signal transmitted on a power line in a power line communication (PLC) system that includes at least one receiver and at least one other device connected on the power line which provides variable loading during cycles of the AC mains signal. A first loading interval within at least a first cycle of the cycles having lower loading and at least a second loading interval within said first cycle having higher loading are identified using the timing information. At least one data packet is transmitted only during the first loading interval over the power line to the receiver. | 10-11-2012 |
20120257683 | COMMUNICATIONS SYSTEM USING BEAMFORMING - In a MIMO communications system a first communications device applies beamforming to a complete transmission packet including both synchronization data and either payload data or training symbols. A second communications device evaluates the beamformed synchronization data and determines and transmits a feedback information indicating minimum required synchronization data and/or a minimum number of training symbols. The first communications device tailors the synchronization data and/or number of training symbols on the basis of the feedback information. Beamforming the complete transmission packet facilitates signal suppression at defined locations. When the channel properties change, the second communications device may provide further channel state information to adapt beamforming in the first communications device without transmission of not beamformed training symbols. The communications system may be a powerline telecommunications system. | 10-11-2012 |
20120263242 | METHOD AND DEVICES FOR ESTABLISHING COMMUNICATION BETWEEN A FIRST STATION AND A SECOND STATION - Methods and devices that establish communication between a first station and a second station are provided. To this end, an identifier, which identifies the first station and the second station as communication partners for communication, is transmitted between the first and second stations on a first partial connection. After receiving said identifier, communication is started between the first and second stations via a communication connection, wherein the transmission of the identifier via the first partial connection and the communication connection are based on different physical connections. The methods and systems can be used for loading or unloading processes of electrical vehicles, such as autonomous systems in the hospital field, or for vehicles for personal transportation. The methods and systems may provide reliable and cost-effective communication between the first and second stations. | 10-18-2012 |
20120275526 | ETHERNET OVER POWER - The present disclosure relates to Ethernet-over-Power and provides communication to and from the powerline hardware, e.g. power sockets or light fittings, and through the powerline itself. In one aspect a Power and Data transmission terminal that is a MAC addressable power outlet, switch or transition point is provided, the Power and Data transmission terminal having a PLC Transceiver, a microcontroller, a power consumption meter and a transmission router between the microcontroller and the PLC Transceiver, the system thereby being able to both monitor energy usage and allow data communication over the powerline with a single microcontroller at the or each Power and Data transmission terminal. The system provides I. P addresses to the electrical outlets from which a wide range of devices run and in so doing it can communicate with the electrical outlets themselves. | 11-01-2012 |
20120275527 | ISOLATED COMMUNICATIONS INTERFACE - A method and interface for serial communication is provided. The interface includes a differential input/output having a first node and a second node. There are several input/output nodes arranged to receive serial interface signals. The interface includes a transmitter configured to drive a twisted pair cable at the differential input/output. There is a receiver coupled to the differential input/output that includes a window comparator. A serial port control unit provides serial data to the transmitter and receives serial data from the receiver. The serial communications interface transmits serial data to and receives serial data from a second serial communications interface independent of a reference clock and is galvanically isolated from the second serial communications interface. | 11-01-2012 |
20120288016 | VEHICLE AND COMMUNICATION DEVICE FOR VEHICLE - A PLC processing device includes: a filter; a first signal firm; a second signal line; and a PLC-ECU. The filter removes noise from a signal transmitted using a power line. The filter is provided on the first signal line. In contrast, the second signal line bypasses the filter. The PLC-ECU communicates using a signal which has passed through the filter while the power storage device is being charged. The PLC-ECU communicates using a signal which has bypassed filter while the charging of the power storage device is stopped. | 11-15-2012 |
20120288017 | METHOD FOR TRANSMITTING A SIGNAL FROM A TRANSMITTER TO A RECEIVER IN A POWER LINE COMMUNICATION NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well. | 11-15-2012 |
20120294377 | Beacon Selection in Communication Networks - Systems and methods for beacon selection in communication networks are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include performing, using a terminal device deployed in a communications network, receiving a beacon transmitted by a switch device within the communications network and, in response to the terminal device having had a previous connection with the switch device, determining a connection time of the previous connection. The method may also include performing at least one of: adding the switch device to a blacklist in response to the connection time being smaller than a first threshold value, or selecting the switch device for subsequent communication in response to the connection time being greater than a second threshold value. | 11-22-2012 |
20120300859 | Precision Timing in a Data Over Cable Service Interface Specification (DOCSIS) System - An accurate non-Data Over Cable Service Interface Specification (non-DOCSIS) clock signal is generated at the downstream output of a DOCSIS network. In one example method, a downstream DOCSIS Timing Protocol (DTP) client in the DOCSIS network is frequency synchronized to an upstream DTP server in the DOCSIS network. DOCSIS timing information, along with one or more timing correction factors received at the DTP client, is used to time synchronize the DTP client to the DTP server. Based on the time and frequency synchronization between the DTP server and the DTP client, the clock signal is generated at the output of the DTP client in accordance with the non-DOCSIS timing protocol. | 11-29-2012 |
20120300860 | TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION SYSTEM - Provided is a transmission device including a terminal connected electrically to a terminal of another device, and a transmission unit configured to transmit information through the terminal by performing load modulation according to contact between the terminal and the terminal of the other device. | 11-29-2012 |
20120307916 | TRANSMITTING APPARATUS USING DC CARRIER AND RECEIVING APPARATUS USING DC CARRIER - A transmitting apparatus using DC carrier includes a microcontroller, a transmitting-side communication circuit, an induction reactance unit, a DC isolation unit, and a DC power and signal output terminal. An information signal is received by the microcontroller. The information signal is transferred to a communication signal by the transmitting-side communication circuit. A DC power is received by the induction reactance unit. The DC isolation unit avoids the transmitting-side communication circuit to be impacted by the DC power. The communication signal and the DC power are transmitted from the DC power and signal output terminal to an electric wire. The transmitting apparatus using DC carrier of the present invention can transmit the DC power and the communication signal at the same time with an electric wire to save labor cost and electric wire cost. | 12-06-2012 |
20120307917 | CONNECTING VARIOUS WIRELESS TERMINALS OVER POWER LINES - A method of extending the coverage of a wireless communication network having two or more nodes communicating over power lines network is provided herein. The method includes: providing the nodes with respective adapters, each one of the adapters coupling its respective node with the power lines network and being further operable in at least one of: receiving mode, transmitting mode; selecting one or more time-division duplex frequency channel or two or more frequency-division duplex frequency channels for communication over the power line media, such that less interfered frequencies are used, to maintain or to yield an increase in wireless communication performance between the nodes; broadcasting over the power line, via at least one of the adaptors, signals or information indicative of a central frequency point for each one of the selected frequency channels; and establishing a communication link over the power lines network between the nodes via the adaptors. | 12-06-2012 |
20120307918 | COMMUNICATION SYSTEM - A communication terminal is provided with: first and second transmission units transmitting signals on a communication line, first and second receiving units receiving signals from another communication terminal; and a communication method switching unit switching the signal communication method. The first transmission unit transmits an electrical current signal to the communication line. The first receiving unit receives a voltage signal obtained by converting, by means of a current/voltage conversion unit, the electrical current signal transmitted from the first transmission unit. The second transmission unit transmits a communication signal to the communication line as a voltage signal. The second receiving unit receives the voltage signal transmitted from the second transmission unit. The communication method switching unit switches between an electrical current transmission method in which transmission is performed by the first transmission unit, and a voltage transmission method in which transmission is performed by the second transmission unit. | 12-06-2012 |
20120314780 | System and Method for Transmit Signal Pulse Shaping in Automotive Applications - A system and method for transmit signal pulse shaping in automotive applications. Automotive vehicle manufacturers that incorporate electronic components into an automotive vehicle must consider emission requirements masks that can be dependent on particular geographic markets as well as the other electronic components contained within a particular automotive vehicle design. A physical layer device is provided that can be configured to operate in multiple emissions configurations using configurable parameters specified for the modulation and wave shaping modules. | 12-13-2012 |
20120314781 | Powerline Control Interface for Frequency and Amplitude Modulation Transmitter - An apparatus is disclosed where a Powerline interface is used to transmitting data into the powerline grid network, where the powerline interface is pulling the required transmit energy from the power grid network, where the powerline interface is transmitting data using standard modulation such as ASK, FSK, S-FSK, QPSK, OFDM, etc. . . where the transmit data are passed on to the powerline interface by the use of an adapation stage, where a “control signal” is used to enable the transmitting of data by providing enough voltage to polarize the FET used in the control path. | 12-13-2012 |
20120314782 | Powerline Control Interface in CENELEC (EU) A-D Bands Frequency and Amplitude Modulation Transmitter - An apparatus is disclosed where a Powerline interface is used to transmit data into the powerline grid network, where the powerline interface is pulling the required transmit energy from the power grid network, where the powerline interface is transmitting data using standard narrow band modulation such as ASK, FSK, S-FSK, where the transmitted data are passed on to the powerline interface by the use of an “Input signal” adapation stage, where an error calculation and a comparisson to a “Triangle” signal is performed to create a command signal used to enable the transmission of data by providing enough voltage to polarize the Transistor (i.e: MOS FET) used in the powerline path. | 12-13-2012 |
20120314783 | SYSTEM AND METHOD FOR POWER LINE COMMUNICATION - A communication system for a power line is described. A transmission system of the communication system divides the time axis into a number of time slots synchronized such that one time slot can start about a zero crossing of the power line signal. These time slots are referred to as channels and are numbered from 1 to n. A modulation method is described to is narrow band continuous phase FSK, where a number m of modulating frequencies are used, arranged such that an integral number of full cycles fit into each channel time slot for all m frequencies. The system transmits during only a subset of the available time slots (channels) concentrated near the zero crossing of the power line waveform where the noise is typically minimal. | 12-13-2012 |
20120320995 | CO-EXISTENCE OF MULTI-CARRIER AND SINGLE CARRIER COMMUNICATION STANDARDS ON SHARED PLC CHANNEL - A method for reducing interference on a shared powerline communications (PLC) channel in a PLC network including a first node using a multi-carrier modulation communication standard operating at a first and second carrier frequency and a second node using a single-carrier modulation communication standard operating based on a single-carrier frequency. (i) Non-overlapping transmission times are determined for transmissions by the first node relative to second node transmission times for transmissions from the second node or (ii) non-overlapping frequencies are selected for the first carrier frequency and second carrier frequency which do not overlap with the single-carrier frequency or frequencies based on the single-carrier frequency. The second node transmits using the single-carrier modulation communication standard at the second node transmission times. The first node transmits using the multi-carrier modulation communication standard at the non-overlapping transmission times or non-overlapping frequencies. | 12-20-2012 |
20120320996 | PREAMBLE SEQUENCE EXTENSION - A method of powerline communications between a plurality of nodes on a powerline communications (PLC) channel including a first node and a second node. At least one communication quality measure is determined for the PLC channel. Based on the communication quality measure, a preamble of a data frame is dynamically switched between a reference preamble having a reference symbol length including a reference number of syncP symbols and a reference number of syncM symbols and at least a first extended preamble having an extended symbol length that is greater than (>) the reference symbol length. The data frame is then transmitted on the PLC channel. | 12-20-2012 |
20120320997 | NETWORK INFRASTRUCTURE FOR MOBILE MACHINES WHICH CAN BE USED IN AREAS AT RISK OF EXPLOSION - A network infrastructure for mobile machines which are usable in explosive areas, having inherently safe participants and not inherently safe network participants the latter being arranged in pressure-resistant housings. The machine has at least one controller for actuating at least one not inherently safe participant. In order to provide a network infrastructure which avoids the drawbacks of the prior art, the machine has, outside the pressure-resistant housing for the first controller, at least one second, inherently safe controller for actuating at least one inherently safe participant, wherein the first controller forms a data distributor for a plurality of not inherently safe participants and the second controller forms a data distributor for a plurality of inherently safe participants, and wherein the first data distributor and the second data distributor are linked via an electrically decoupled data communication link. | 12-20-2012 |
20120320998 | USE OF POWERLINES FOR TRANSMISSION OF HIGH FREQUENCY SIGNALS - Communication is provided which includes receiving a transmitted radio signal at a powerline wherein the powerline functions as a receiving antenna for the wirelessly transmitted radio signal. The powerline is coupled to an input of a radio receiver using a coupler to communicate the radio signal to the radio receiver. For calibration purposes a second antenna not coupled to powerline may be used. A method for powerline communication across transformers, open circuit breakers, and other devices is also provided. In addition, a method of monitoring a device connected to a powerline is provided. | 12-20-2012 |
20120320999 | METHOD FOR TRANSMITTING A SIGNAL FROM A TRANSMITTER TO A RECEIVER IN A POWER LINE COMMUNICATION NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well. | 12-20-2012 |
20120321000 | METHOD FOR TRANSMITTING A SIGNAL FROM A TRANSMITTER TO A RECEIVER IN A POWER LINE COMMUNICATION NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well. | 12-20-2012 |
20120328030 | Method For Transmitting A Signal Via A Power Line Network, Transmitter, Receiver, Power Line Communication Modem And Power Line Communication System - A method for receiving signals over a power line network, within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each of the channels having a respective feeding port of the at least one transmitter and a respective receiving port of the at least one receiver, and the receiver having at least two receiving ports. The method determines a channel characteristic of each of the channels, applies a receiving port selection criterion based on the channel characteristic, and selects an excluded receiving port among the at least two receiving ports based on the receiving port selection criterion, the excluded receiving port is not used during further communication. | 12-27-2012 |
20130003873 | ANALOG TO DIGITAL CONVERTER WITH INCREASED SUB-RANGE RESOLUTION - An analog to digital converter with increased sub-range resolution and method for using the analog to digital converter is described herein. The device includes an analog front end that produces an analog communication signal, a digital front end that receives a digital communication signal, and an Analog to Digital Converter (ADC) that samples the analog communication signal across a full-range. The ADC includes a plurality of sub-range ADCs, each sub-range ADC measuring the analog communication signal across at least one respective sub-range of the full-range, the plurality of sub-ranges extending across the full-range, a central sub-range ADC having greater quantization accuracy than at least one other sub-range ADC. The ADC also includes signal combining circuitry operable to process outputs of the plurality of sub-range ADCs to create the digital communication signal. | 01-03-2013 |
20130003874 | POWERLINE COMMUNICATION DEVICE - A Powerline Communications (PLC) device includes a processing module, memory coupled to the processing module, and a PLC interface coupled to the processing module. The PLC device transmits a plurality of PLC queries, two of the plurality of PLC queries complying with differing and incompatible PLC communication standards. It then receives a plurality of responses from a plurality of other PLC devices, two responses received from respective PLC devices complying with two differing and incompatible PLC communication standards. The PLC device then directs each of the two PLC devices to transmit communications of the differing and incompatible PLC communication standards in an attempt to avoid PLC communication conflicts. The PLC device may establish non-PLC communications with a remote communications device. The PLC device may bridge communications between remote PLC devices and between a remote PLC device and a remote non-PLC device. | 01-03-2013 |
20130003875 | POWERLINE COMMUNICATION DEVICE WITH MULTIPLE PLC INTERFACE(S) - A Power Line Communications (PLC) device includes a processing module, memory, a first PLC interface, and a second PLC interface. The PLC device determines that the PLC device will service communications with a first remote PLC device according to a first PLC communication standard and configures the first PLC interface to service communications to support the first PLC communication standard. The PLC device also determines that the PLC device will service communications with a second remote PLC device according to a second PLC communication standard and configures the second PLC interface to service communications to support the second PLC communication standard. The PLC device may service communications via the first and second PLC devices concurrently when the first and second PLC communication standards are not conflicting. The PLC device may transmit communications via the first PLC interface and receive ACKs via the second PLC interface. | 01-03-2013 |
20130003876 | BREAKER BOX POWERLINE COMMUNICATION DEVICE - A Power Line Communications (PLC) device includes a processing module, memory, and a plurality of PLC communication interfaces coupled to the processing module. Each PLC communication interface couples to a respective PLC media segment. The processing module, the plurality of PLC communication interfaces, and the memory are operable to receive a PLC communication from a first PLC device via a first PLC communication interface of the plurality of communication interfaces, process the PLC communication to identify a second PLC device, and transmit the PLC communication to the second PLC device via a second PLC communication interface of the plurality of communication interfaces. The PLC device may include one or more non-PLC interfaces that support non-PLC communications. | 01-03-2013 |
20130003877 | PLC Device Supporting MIMO Operations - A communications device includes a PLC interface operable to couple at least two differing communication signals to at least two differing pairs of at least three conductors of a powerline medium. A processing module of the device and the PLC interface interact with a remote PLC device to determine connectivity of the remote PLC device to the PLC device via the at least three conductors of the powerline medium, select at least two conductor pairs of the powerline medium that communicatively couple the PLC device to the remote PLC device for Multiple Input Multiple Output (MIMO) signal servicing, and simultaneously transmit MIMO PLC signals to the remote PLC device via the at least two conductor pairs. The communications device may also include a non-PLC interface, with the communications device operable to divide MIMO communications between a powerline medium and a non-PLC medium, e.g., coaxial cable, cat-5 cable. | 01-03-2013 |
20130003878 | POWERLINE COMMUNICATION DEVICE WITH LOAD CHARACTERIZATION FUNCTIONALITY - A method for operating a Power Line Communications (PLC) device includes identifying at least one proximately located load device using the wireless interface, determining device characteristics of the at least one proximately located load device using the wireless interface, communicating with a remote PLC device via the PLC interface, and transmitting to the remote PLC device via the PLC interface the device characteristics of the at least one proximately located load device. Operation may further include establishing wireless communications with the at least one proximately located device, querying the at least one proximately located device wirelessly, and receiving the device characteristics wirelessly. Other operations include creating a diagrammatic representation of a premises representing a plurality of areas and passages between the plurality of areas and including wireless reception quality for each of the plurality of spaces. | 01-03-2013 |
20130003879 | POWERLINE COMMUNICATION DEVICE NOISE TIMING BASED OPERATIONS - A Power Line Communications (PLC) device includes a processing module, memory, and a communication interface. The PLC device determines, at a PLC Physical Layer (PHY), a noise cycle of a power main coupled to the PLC interface. Based upon the noise cycle, the PLC device determines a higher noise period and a lower noise period of the noise cycle and then allocates, by a PLC Media Access Control (MAC) layer, first communication operations in the higher noise period and differing second communication operations in the lower noise period. Such operations may include adjusting framing of PLC MAC layer frames to have a first frame construct during the higher noise period and second frame construct during the lower noise period. Other differences in operations may be coding operations, either block or channel codes, QoS operations, restricting communications, redundant Acknowledgement (ACK) operations, or differing PLC standardized operations during the differing periods. | 01-03-2013 |
20130016792 | MANAGING COEXISTENCE AMONG SIGNALING PROTOCOLS ON A SHARED MEDIUM - Within a domain of a master device, devices that share a power line as a communications medium monitor signal detection windows to sense network status. The devices transmit sensed network status to the master device. The master device allocates channel resources based on the network statuses communicated by the devices within the domain. | 01-17-2013 |
20130022132 | COMMUNICATION AMONG NETWORK DEVICES AT SUBSCRIBER PREMISES - One or more example techniques of this disclosure may be directed to providing a diversity of ways in which a network interface device may receive information from or transmit information to one or more of subscriber devices within a subscriber premises. For example, the network interface device may wirelessly transmit and receive information. The network interface device may also be coupled to a power supply device, and may receive information from and transmit information to the power supply device. The power supply device may receive information from and transmit information to the one or more of the subscriber devices utilizing wireless techniques and/or power line communication (PLC) techniques. | 01-24-2013 |
20130022133 | Wideband Balun Structure - A balun structure is disclosed having positive and negative going signal paths coupled to a ninety degree hybrid. The positive signal path has a circuit trace and a phase shaper structure that provides three hundred and sixty degrees of phase shift at Port 1 of the hybrid. The negative going signal path has a circuit trace and a second order phase shaper that provides four hundred and fifty degrees of phase shift at Port 2 of the hybrid. Port 1 is coupled to Port 3 of the hybrid and functions as an output port. The first order phase shaper and the second order phase shaper compensate for the signal loss caused by a signal cable coupled to the output port and provide a frequency band from DC to at least 15 GHz and a transient response having less than ten percent pre-shoot. | 01-24-2013 |
20130022134 | METHOD AND APPARATUS FOR REDUCING JITTER - Aspects of the disclosure provide a method. The method includes causing a voltage level of a signal transmitted on a transmission line to be non-linearly modified to reduce a voltage variation at a target level, and providing the modified signal to a receiving circuit that is disposed on the transmission line. In an embodiment, the method includes causing the voltage level of the signal transmitted on the transmission line to be non-linearly modified to reduce a first voltage variation at a first target level corresponding to a first digital value and to reduce a second voltage variation at a second target level corresponding to a second digital value. | 01-24-2013 |
20130022135 | COMMUNICATION APPARATUS, COMMUNICATION METHOD AND INTEGRATED CIRCUIT - A communication apparatus communicates with another communication apparatus. The communication apparatus includes a first communication unit configured to receive serial data from a first communication apparatus that is serially connected to the communication apparatus; a modulation unit configured to modulate the serial data received by the first communication unit into data other than the serial data to generate transmission data; and a second communication unit configured to perform first unicast transmission which involves transmitting the transmission data by designating a second communication apparatus as a transmission destination and second unicast transmission which involves transmitting the transmission data by designating a third communication apparatus as a transmission destination. | 01-24-2013 |
20130028338 | 1-Wire Communication Protocol and Interface Circuit for High Voltage Applications - A system for communicating with a host using control signals over a 1-wire interface is disclosed. The system includes a driver coupled to the host by the 1-wire interface. Control signals are transmitted from the host to the driver for decoding by the driver controller. The control signals are pulse width modulation format signals which are interpreted by the driver as binary encoded command mode signals or analog encoded command mode signals, depending upon when the signals are received in relation to a preamble pulse and a post-amble pulse. | 01-31-2013 |
20130034172 | Powerline Communicated Load Control - A system for transmitting communication signals, the system comprising an injector circuit connected to a powered circuit conductor and configured to modulate a power signal with a direct current voltage offset, the direct current voltage offset being within a range that causes approximately 1 percent or less total harmonic distortion of the power signal; and a decoder connected to the powered circuit conductor and a load, the decoder configured to demodulate the direct current voltage offset to control the load. A method for transmitting communication signals, the method comprising modulating a power signal on a powered circuit conductor with a direct current voltage offset, the direct current voltage offset being within a range that causes approximately 1 percent or less total harmonic distortion of the power signal; and demodulating the direct current voltage offset to control a load. | 02-07-2013 |
20130044826 | APPARATUS TO COMMUNICATE MULTIPLE SIGNALS FROM MULTIPLE ANTENNAS ON A SINGLE CABLE - An antenna assembly, a receiver, and a system configured to superimpose a first received signal from a first antenna and an intermediate signal based on a second received signal from a second antenna onto a single cable. The antenna assembly includes a mixer and an adjustable local oscillator (ALO) that frequency shift the second received signal to generate the intermediate signal. The output frequency of the ALO is controlled by a control signal superimposed on the single cable that is output by the receiver. With this arrangement, a plurality of antennas or antenna elements can be connected to a receiver using a single coaxial cable. Such an arrangement is particularly desirable to manufacturers of automobiles and other vehicles. Also, the receiver can detect if the output frequency of the ALO needs to be adjusted, and so close-loop control of the output frequency is possible. | 02-21-2013 |
20130044827 | Communications Via Power Line and a Hardware Implementation - Provided is a communication protocol for communication via power line. For example, there is a power supply equipment for communication via a power line including a controller, a power line input coupled to the power line, and a current demodulator coupled to the power line input and the controller. The controller is configured to demodulate a first portion of a power signal of the power line at the power line input using the current demodulator and to receive a first bitstream over the power line. A second bitstream may be provided by the controller in order to modulate a voltage sent from the power supply equipment to a powered device via the power line. The powered device may further demodulate the modulated voltage to extract the second bitstream sent from the power supply equipment. | 02-21-2013 |
20130044828 | Method of Handling Power Reduction at Transmitter and Related Communication Device - A method of arranging a frame for power reduction, utilized in a transmitter in a communication system is disclosed. The transmitter communicates with a receiver in the communication system. The method comprises generating a preamble with a first power level in the frame; arranging a header with the first power level after the preamble in the frame, wherein the header comprises information of a second power level; arranging an additional channel estimation (ACE) symbol with the second power level after the header in the frame; and arranging a first payload with the second power level after the ACE symbol in the frame. | 02-21-2013 |
20130064309 | INTERFACE CIRCUIT FOR TRANSMITTING AND RECEIVING DIGITAL SIGNALS BETWEEN DEVICES - A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a TMDS transmission line, an Ethernet™ signal is bidirectionally transmitted, and also, a SPDIF signal is transmitted from the sink device to the source device. The Ethernet™ signal bidirectionally transmitted between Ethernet™ transmitter/receiver circuits is differentially transmitted by an amplifier and is received by the amplifier. The SPDIF signal from a SPDIF transmitter circuit is common-mode transmitted from an adder and is received by the adder to be supplied to the SPDIF receiver circuit. | 03-14-2013 |
20130070863 | Method for supplying at least one bus user - A method for supplying at least one bus user via a control unit, in which data are transmitted to at least one bus user during at least one phase for data transmission and power is transmitted during at least one phase for power transmission, the at least one phase for data transmission and the at least one phase for power transmission being provided alternately, and the lengths of the phases for data transmission and/or the lengths of the phases for power transmission being set variably. | 03-21-2013 |
20130077700 | SOFT REPETITION CODE COMBINER USING CHANNEL STATE INFORMATION - An embodiment is a method and apparatus to decode a signal using channel information. A channel state estimator generates a tone value representing channel information. A quantizer quantizes the tone value. A combiner combines de-interleaved symbols weighed by the quantized tone value. A comparator compares the combined de-interleaved symbols with a threshold to generate a decoding decision. Another embodiment is a method and apparatus to decode a signal using averaging. A channel estimator provides a channel estimate. A multiplier multiplies a quantized output of a demodulator with the channel estimate to produce N symbols of a signal corresponding to a carrier. A de-interleaver de-interleaves the N symbols. An averager averages the N de-interleaved symbols to generate a channel response at a carrier. | 03-28-2013 |
20130094596 | DUAL-CHANNEL RECEIVER FOR POWERLINE COMMUNICATIONS - The presently disclosed subject matter relates to powerline communications (PLC) in an advanced metering infrastructure (AMI) environment. A communications signal is applied to a power line by a PLC transmitting device. A receiver is provided that evaluates communications signals based on the power coupled to the power line by the transmitting device. In one present embodiment, PLC signal voltage and current levels are multiplied together to evaluate signal power to reproduce received PLC signals. | 04-18-2013 |
20130094597 | Joining Process for G3 Networks - Systems and methods for routing protocols for power line communications (PLC) are described. In some embodiments, a method performed by a PLC device, such as a PLC meter, may include identifying at least one bootstrapping agent and a personal area network (PAN) identifier for one or more networks that are operating within a personal operating space of the PLC device. The device selects a target bootstrapping agent to use for the join process with a target network. The target bootstrapping agent may be selected from a list of bootstrapping agents associated with the target PAN identifier. If the attempt to join the target network fails, then the device further determines if other bootstrapping agents are associated with the target PAN identifier. The device selects an alternate target bootstrapping agent from the other bootstrapping agents that are associated with the target PAN identifier and reattempts the join process. | 04-18-2013 |
20130101054 | POWER LINE COMMUNICATION METHOD AND ELECTRONIC SYSTEM AND ELECTRONIC DEVICE USING THE SAME - The present application discloses a power line communication method and an electronic system and an external device using the same. The external device using the power line communication method is electrically connected to an electronic device via a transmit line and comprises: a voltage detecting module configured to detect a voltage variance of a signal voltage supplied by the electronic device; a processing module retrieving a message according to the voltage variance and processing the message to generate a message to be transmitted; and a load modulation module having a load and modulating a load value of the load according to the message to be transmitted. | 04-25-2013 |
20130101055 | Sub-Band Power Scaling Reporting and Sub-Band Transmit Power Estimation - Systems and methods for routing protocols for power line communications (PLC) are described. In some embodiments, a method performed by a PLC device, such as a PLC meter, may include selecting one or more transmit sub-bands on which to transmit frames, where the transmit sub-bands comprise groups of six carrier frequencies. The PLC device then generates a frame comprising a tone map that indicates which transmit sub-bands are used to carry data for the frame. The tone map using two bits per transmit sub-band to indicate a status of each transmit sub-band. The PLC device then transmits the frame on the selected transmit sub-bands using OFDM. A resolution bit and a mode bit may be used to provide additional information about the transmit sub-bands, such as an amount of power adjustment that has been applied to carrier frequencies and whether dummy bits are transmitted on unused carrier frequencies. | 04-25-2013 |
20130101056 | RECEIVER CIRCUIT AND SYSTEM INCLUDING P-TYPE SENSE AMPLIFIER - A receiver circuit includes a first p-channel metal oxide semiconductor (PMOS) transistor, an input circuit, and an amplifier. The first PMOS transistor is configured to apply a power supply voltage to a power node in response to a clock signal. The input circuit is coupled to the power node, and configured to receive the power supply voltage, and the input circuit includes a plurality of PMOS transistors configured to generate a first sensing signal in response to an input signal and configured to generate a second sensing signal in response to at least one reference signal. The amplifier is configured to amplify the first sensing signal and the second sensing signal to generate a first output signal and a second output signal. | 04-25-2013 |
20130107974 | COMMUNICATIONS SYSTEM USING BEAMFORMING | 05-02-2013 |
20130114746 | DATA TRANSMISSION SYSTEM, DATA TRANSMISSION METHOD, AND TRANSMISSION DEVICE - A data transmission system includes a plurality of signal lines, a signal line determination unit, and a data transmission unit. The plurality of signal lines transmit data transmitted from a transmission-side device to a reception-side device. The signal line determination unit determines which signal line among the signal lines is used to transmit reception adjustment data to the reception-side device. The data transmission unit uses the signal line determined by the signal line determination unit to transmit the reception adjustment data to the reception-side device and uses another signal line to transmit transmission data to the reception-side device. | 05-09-2013 |
20130114747 | METHODS AND APPARATUS FOR SIGNALING ON A DIFFERENTIAL LINK - Methods and apparatus are disclosed for transitioning a receiver from a first state to a second state using an in-band signal over a differential serial data link. | 05-09-2013 |
20130121425 | Coexistence Method by Requesting Access to the Channel - Systems and methods for implementing coexistence by requesting access to a channel in power line communications (PLC) are described. In an illustrative embodiment, a method performed by a PLC device, such as a PLC meter, may include detecting a communication from foreign PLC device on a PLC network in response to a foreign preamble received by the PLC device, determining whether a threshold back-off duration has been reached, and transmitting a channel access request in response to a determination that the threshold back-off duration has been reached. | 05-16-2013 |
20130121426 | TWACS PULSE INDUCTOR REVERSAL CIRCUIT - A circuit (C | 05-16-2013 |
20130121427 | SCALED POWER LINE BASED NETWORK - A power line communication network includes a first power line communication sub-network, a second power line communication sub-network, and an isolation filter disposed between first and second power line communication sub-networks. The isolation filter is configured to pass electrical power signals between the first and second power line communication sub-networks, and to block passage of data communication signals from the first power line communication sub-network to the second power line communication sub-network. | 05-16-2013 |
20130121428 | FUEL DISPENSING ENVIRONMENT UTILIZING RETROFIT BROADBAND COMMUNICATION SYSTEM - A fueling environment communication system for providing high bandwidth information via existing field wiring to a plurality of forecourt devices. The communication system according to this aspect comprises a back room communication module having a first plurality of Ethernet ports for connection to external devices using Ethernet communication and a second plurality of Ethernet ports. The back room communication module further comprises a plurality of modulation interface devices each connected on a first side to a respective one of the second plurality of Ethernet ports. A summing and isolation module having a high pass filter is connected to each of the modulation interface devices on a second side thereof to pass a modulated high frequency signal. The summing and isolation module further has a low pass filter through which low frequency legacy data can be passed and combined with said modulated high frequency signal. In addition, summing and isolation module is connectable via existing field wiring to communicate with forecourt devices in point-to-point fashion. | 05-16-2013 |
20130148746 | Scheduling for Charger and Electric Vehicle Communication in Power Line Communication System - Systems and methods for establishing scheduling for charger and electric vehicle communication in a PLC system are described. In an illustrative embodiment, a method performed by a PLC device. In a further embodiment, the PLC device may be configured to operate according to a narrow-band PLC communication protocol. In a further embodiment, the narrow-band PLC communications between PLC devices in the charger and the electric vehicle are conducted over a pilot wire coupling the charger to the electric vehicle. In still a further embodiment, the pilot wire may be one of a standard set of existing wires in a standard cable used for connecting the charger to the electric vehicle. | 06-13-2013 |
20130148747 | TRANSMITTING ELECTRICAL POWER AND COMMUNICATION SIGNALS - A system for transmitting electrical power and communication signals is provided. The system comprises a transmission line, a source of electrical power for supplying electrical power to the transmission line, a first communication unit configured to supply communication signals to the transmission line, a power extraction unit configured to extract and use electrical power from the transmission line, a second communication unit configured to receive communication signals from the transmission line; and a control unit configured to control operation of the system. The source supplies electrical power to the transmission line for respective periods of time which are different from respective periods of time in which the first communication unit supplies communication signals to the transmission line. | 06-13-2013 |
20130148748 | METHOD TO IDENTIFY TRACTOR AND TRAILERS AND THE ORDER OF HOOK UP - Methods for connected tractor and trailer identifications and the order of hook-up of multiple trailers to a tractor enable the tractor and trailer identification and the order of trailer hook-up to be remotely broadcast from the tractor or trailers. In one aspect, the detection of vehicle identification and the order of trailer hook-up are determined by PLC tags mounted in the trailers or by a PLC Gateway mounted in the tractor or one of the trailers utilizing the PLC system on the tractor/trailers. In another aspect, the vehicle identifications are extracted from electronic modules existing on the tractor and trailers and sent to the PLC Gateway for broadcast from tractor/trailer.op | 06-13-2013 |
20130156115 | 10 Gbps Coaxial Cable Networking System - Systems and methods are described for providing a throughput of 10 Gbps or more in a coaxial cable network and which operate at high frequencies above the existing services on home coax in the range 2 GHz to 10 GHz, or more. The network uses a wide signal bandwidth, in the range, for example, of 8 GHz. Operating above the CATV band and satellite services, the network coexists with these services without mutual interference. The system could be used in networking systems, such as MoCA 3 and Access systems. This is achieved by using a splitter with a low loss and low isolation in the 2-10 GHz range at the point-of entry (POE) of the network signal. Alternatively, an active node to provide a signal booster or a repeater function at the point-of-entry (POE) can be used. | 06-20-2013 |
20130156116 | BLOCK FILTER FOR POWER LINE COMMUNICATION - Provided is a blocking filter for PLC, the blocking filter including a low pass filter unit including a capacitor and a plurality of inductors, a plurality of magnetic saturation prevention circuits each connected to the inductor in parallel to prevent magnetic saturation of the inductor, and operating in response to an interruption control signal inputted from outside, and a first switch connected or opened in response to the interruption control signal and interconnected between the low pass filter unit and a neutral line. | 06-20-2013 |
20130156117 | Multi-Reference Clock Synchronization Techniques - Efficient synchronization techniques that support multiple reference clocks in an EQAM device. Consider a plurality of different modulators in the EQAM device receiving data from a corresponding plurality of different sources having corresponding different timing references (i.e., different source reference clocks). To accommodate this, the modulators all operate using a common system clock, and each modulator is provided with a phase synchronizer. The phase synchronizer synchronizes the modulated symbol phases to the corresponding reference clock. | 06-20-2013 |
20130163681 | COORDINATING POWER DISTRIBUTION LINE COMMUNICATIONS - Aspects of the present disclosure are also directed towards a method that includes maintaining a transmission period which has a start time and an end time synchronized to metrological time. Further, this method, in response to the start time, begins transmission of a frame, which includes a plurality of symbols. This transmission occurs over power distribution lines that carry power using alternating current (AC). This method also includes synchronizing a transmission time for each symbol of the plurality of symbols according to a time-based parameter of the AC. In response to reaching an end of the frame, a synchronization symbol period is determined for a synchronization symbol, as a function of the transmission times, for the plurality of symbols and time from the end of the frame to the end time. The synchronization symbol is then transmitted on the power distribution lines. | 06-27-2013 |
20130163682 | POWERLINE COMMUNICATION RECEIVER - Aspects of the present disclosure are directed towards a circuit-based apparatus for receiving data communications over power distribution lines that carry power using alternating current (AC). The apparatus has a processing circuit that is configured and arranged to receive an input signal representing the data communications over power distribution lines. For a quadrature encoded signal, the input signal is separated into intermediary signals representing a real portion of and an imaginary portion. The processing circuit can then determine timing information from the real portion of and the imaginary portion. The intermediary signals can then be decimated according to a variable rate of decimation that is responsive to the determined timing information. The decimated intermediary signals are also filtered. | 06-27-2013 |
20130163683 | POWER LINE COMMUNICATION TRANSMITTER WITH AMPLIFIER CIRCUIT - In one embodiment, a transmitter circuit is provided for data transmission from endpoint devices to collector devices over power distribution lines. The transmitter includes an amplifier circuit configured to receive and convert a first data signal to a pulse density modulation (PDM) encoded signal using high frequency pulses that introduce high frequency components. A low-pass filter of the transmitter is configured to filter the high frequency components of the PDM encoded signal to produce a second data signal, which is an amplification of the first data signal. A coupling circuit of the transmitter is configured to communicatively couple the second data signal from the low-pass filter to the power distribution lines. The coupling circuit filters the frequency of the AC and prevents high voltage of the power distribution lines from damaging the transmitter. | 06-27-2013 |
20130163684 | COMMUNICATING OVER POWERLINE MEDIA USING SPOT BEAMFORMING - A system and method for communicating information through a powerline medium including at least three conductors, where the transmitter transmits at least two signals onto the powerline medium and the receiver receives one or more signals from the powerline medium. The transmitter adjusts the power transmitted into the powerline medium in order to set the adjusted transmit power to a predetermined level, e.g., a level that ensures power radiated from the powerline medium does not exceed a regulatory limit. The process of adjusting the transmit power may take into account a functional relationship between the transmitted power and properties of the channel. | 06-27-2013 |
20130163685 | COMMUNICATING OVER POWERLINE MEDIA USING EIGEN BEAMFORMING - A system and method for communicating information through a powerline medium including at least three conductors, where the transmitter transmits at least two signals onto the powerline medium and the receiver receives one or more signals from the powerline medium. The transmitter adjusts the power transmitted into the powerline medium in order to set the adjusted transmit power to a predetermined level, e.g., a level that ensures power radiated from the powerline medium does not exceed a regulatory limit. The process of adjusting the transmit power may take into account a functional relationship between the transmitted power and properties of the channel. | 06-27-2013 |
20130177087 | AGILE SWITCHED-LOAD RESONATING TRANSMITTER FOR PASSBAND POWER LINE COMMUNICATION - An agile switched-load transmitter for a communications system for a power distribution network comprises a resonant transponder (T | 07-11-2013 |
20130182781 | PLC/POWER-SUPPLY HYBRID DEVICE AND DEVICE WITH COMMUNICATION FUNCTION - A PLC/power-supply hybrid device includes a power supply circuit. The power supply circuit includes a switching part for chopping a voltage of a voltage input terminal side, and a control circuit that controls the chopping by controlling switching of the switching part. The control circuit is operated in a normal mode and a transmission mode. The normal mode is a mode in which voltage conversion is performed. The transmission mode is a mode in which data transmission is performed through PLC using a power line that leads to the voltage input terminal. In the transmission mode, the control circuit modulates the switching of the switching part in accordance with transmission data. | 07-18-2013 |
20130195208 | POWER LINE COMMUNICATION SYSTEM - A power line communication system is provided in which the influence of the impulsive noise unexpectedly generated on a power line which is a communication medium can be reduced according to the characteristics of the impulsive noise by an existing method and power line communication can be realized without a hindrance. A transmitter is constituted by: a modulator for conveying a LIN data signal by a power line; a filter that allows a signal of a predetermined band to pass therethrough; and a sinusoidal wave outputter (sinusoidal wave in the figure). In contrast, the receiver is constituted by the sinusoidal wave outputter, the filter and a demodulator that performs demodulation. To the power line, a limiter that limits the amplitude of the propagating signal to a predetermined amplitude (reception signal amplitude) is connected. | 08-01-2013 |
20130208816 | ADAPTIVE IMPULSE NOISE MITIGATION - A data transmission system and method is provided for the transmission data signal to one or receiving locations. A Multi Mode Compressive Sensing (MMCS) scheme is provided which adaptively changes the number of pilots used to reconstruct the Impulsive Noise (IN) depending on the IN's current severity so as to mitigate the same and stabilise the Bit Error Rate (BER) of the transmitted data signals and so improve the overall transmission system data throughput. The system can also allow for a variable IN mitigation range in order to allow the concurrent control of the BER and data throughput in the data transmission system. | 08-15-2013 |
20130215981 | METHOD AND APPARATUS FOR THREE-PHASE POWER LINE COMMUNICATIONS - Method and apparatus for generating a balanced three-phase power line communication signal. In one embodiment, the method comprises generating a plurality of modulation signals based on at least one data stream; modulating a plurality of carrier signals by the plurality of modulation signals to generate a balanced three-phase PLC signal comprising a first phase signal, a second phase signal, and a third phase signal; and coupling the balanced three-phase PLC signal to a three-phase power line. | 08-22-2013 |
20130215982 | COMMUNICATION SYSTEM, COMMUNICATION METHOD, RELAYING DEVICE, AND RECORDING MEDIUM - A communication system between a vehicle and a communication device is disclosed. The vehicle transmits electricity supply information in an A-method to a relaying device like an electricity supply device through an electricity supply line. The electricity supply device receives the electricity supply information in the A-method, then, based on the electricity supply information in the A-method, generates electricity supply information in a B-method, and transmits to the communication device the electricity supply information obtained by conversion into the B-method. The communication device transmits electricity supply information in the B-method to the electricity supply device. The electricity supply device receives the electricity supply information in the B-method, then, based on the received electricity supply information in the B-method, generates electricity supply information in the A-method, and transmits the electricity supply information obtained by conversion into the A-method, to the vehicle through the electricity supply line. | 08-22-2013 |
20130215983 | POWER LINE COMMUNICATIONS APPARATUS - A system for communicating data. In one embodiment, the system comprises a photovoltaic (PV) module; an inverter, coupled to the PV module, for receiving DC power from the PV module and converting the DC power to AC power; and an inverter controller communicably coupled to the inverter, wherein the inverter and the inverter controller communicate using power line communications (PLC). | 08-22-2013 |
20130230112 | COMMUNICATION DEVICE USING SPATIAL DIVERSITY, COMMUNICATIONS SYSTEM AND METHOD - In a MIMO communications system a communication device receives one or more receive signals on at least one receiver port. A receiver unit recovers, from the at least one receive signal, at least a first transmit signal transmitted to the receiving communication device via a transmission channel. A multi-link decoder unit decodes the receive signals using a multi-link decoder algorithm with parameters derived from a first channel state information describing the transmission channel and second channel state information describing at least one interference channel via which one or more second transmit signals arrive at the communication device. | 09-05-2013 |
20130243106 | CONNECTOR, CABLE, TRANSMISSION DEVICE, RECEPTION DEVICE, AND METHOD OF MANUFACTURING CONNECTOR - [Object] To provide a connector enabling high quality signal transmission while maintaining compatibility with the current HDMI connector, in a new HDMI interface using pins assigned to a shield, as a data pair. | 09-19-2013 |
20130266081 | Support for Multiple Systems Using Different Modulation Schemes in PLC Networks - Embodiments of methods and systems for using both new and older modulation schemes in PLC networks—thereby supporting legacy systems—are disclosed. In one embodiment, common frames that need to be understood by all nodes to support the network will be sent two or more times using different modulation techniques. For example, all broadcast frames, such as beacon requests, beacons, and route requests may be transmitted once with differential modulation and once with coherent modulation. In one configuration, the beacons with differential modulation may be transmitted in one beacon period, and the beacons with coherent modulation may be transmitted in another beacon period. In another configuration, the differential and coherent beacons for a particular tone mask are transmitted one after the other and before any other tone mask beacon is transmitted. | 10-10-2013 |
20130272435 | VARIABLE-LENGTH CYCLIC PREFIXES IN OFDM COAXIAL COMMUNICATIONS - A coax network unit (CNU) is coupled to a coax line terminal (CLT) by a cable plant. In a discovery mode of operation, the CNU receives from the CLT one or more message packets that include one or more orthogonal frequency-division multiplexing (OFDM) symbols with cyclic prefixes of a first length. In a normal mode of operation subsequent to the discovery mode, the CNU receives data packets comprising OFDM symbols from the CLT. The OFDM symbols of the received data packets have cyclic prefixes of a second length that is less than the first length. | 10-17-2013 |
20130279608 | TRANSMISSION METHOD AND SYSTEM - A method for transmitting digital data via a line includes the steps of providing a clock signal and of transmitting the digital data in synchrony with the clock signal, the clock signal having a frequency that is variable over time. | 10-24-2013 |
20130279609 | ANALOG TO DIGITAL CONVERTER WITH INCREASED SUB-RANGE RESOLUTION - An analog to digital converter with increased sub-range resolution. The device includes an analog front end that produces an analog communication signal, a digital front end that receives a digital communication signal, and an Analog to Digital Converter (ADC) that samples the analog communication signal across a full-range. The ADC includes a plurality of sub-range ADCs, each sub-range ADC measuring the analog communication signal across at least one respective sub-range of the full-range, the plurality of sub-ranges extending across the full-range, a central sub-range ADC having greater quantization accuracy than at least one other sub-range ADC. The ADC also includes signal combining circuitry operable to process outputs of the plurality of sub-range ADCs to create the digital communication signal. | 10-24-2013 |
20130279610 | SYSTEM AND COMMUNICATIONS DEVICE FOR TRANSMITTING DATA VIA A POWERLINE AND CORRESPONDING METHOD - A system for transmitting data via a power line including: a first communications device and a second communications device, the first communications device including a transmit unit adapted to generate OFDM symbols to be transmitted using sub-carriers; a roll-off interval indication unit adapted to generate a transmit message indicating that no roll-off interval before and/or after the OFDM symbols is used when transmitting the data; the transmit unit being further adapted to transmit the transmit message; the second communications device including a receive unit adapted to generate the data from the transmitted OFDM symbols by taking into account the received transmit message. | 10-24-2013 |
20130287125 | SIGNAL SELECT IN UNDERGROUND LINE LOCATION - A transmitter and receiver for performing a signal select algorithm are provided. A transmitter for providing a signal on a line to be located includes at least one direct digital synthesizer, the direct digital synthesizer producing two component frequencies in response to an input square wave signal; and a feedback loop providing the input square wave. | 10-31-2013 |
20130287126 | JAMMER CANCELLER FOR POWER-LINE COMMUNICATION - An apparatus to process an input signal received via a power line in a power line communication system includes a jammer remover and a jammer detector. The jammer remover removes interference resulting from transmission of electricity and the input signal over the power line from the input signal. The jammer remover generates a jammer-canceled signal using an adaptive filtering procedure. The jammer detector is coupled to the jammer remover to detect the interference. | 10-31-2013 |
20130287127 | COMMUNICATION APPARATUS, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD - A communication apparatus repeatedly outputs a first multi-carrier signal SS during predetermined periods T | 10-31-2013 |
20130287128 | 500MBPS TRANSMISSION APPARATUS USING 2P LINE - A 500 Mbps transmission apparatus is provided. The apparatus uses a 2P line which is capable of providing a 500 megabits-per-second service via a 2P UTP cable by adding a sub-layer which serializes and de-serializes symbols which have rates matched with each other and are synchronized, while maintaining a 1000BASE-T unique hierarchical architecture. | 10-31-2013 |
20130294529 | ROBUST COMMUNICATIONS IN ELECTRICALLY NOISY ENVIRONMENTS - A system and method for low-cost, fault tolerant, EMI robust data communications, particularly for an EV environment. | 11-07-2013 |
20130294530 | REDUNDANT MULTISTATE SIGNALING - A data communications system having a plurality of communication devices including a host having a first receiver and a second receiver; and one or more clients, each client including a transmitter coupled between a signal node and a transmitter node, the transmitter selectively transmitting a multistate signal from the signal node to the transmitter node; and a single conductor daisy-chain loop redundantly communicating each multistate signal from each the transmitter to both receivers, the single conductor daisy-chain loop electrically communicating each transmitter node to the receivers. A data communications method including a) transmitting selectively a multistate signal from each of one or more clients; b) communicating electrically each multistate signal to a first location on a host using a single conductor coupled to each the client; and c) communicating electrically each multistate signal to a second location on the host using the single conductor. | 11-07-2013 |
20130294531 | Enabling Co-Existence among Power Line Communication (PLC) Technologies - Systems and methods for enabling co-existence among power line communications (PLC) technologies are described. In some embodiments, a method performed by a PLC device, such as a PLC gateway, may include detecting a communication from foreign PLC device on a PLC network in response to a foreign preamble received by the PLC device, terminating transmissions to the PLC network for a network-specific co-existence Extended Interframe Space (cEIFS) time period in response to the foreign preamble, and resuming transmissions to the PLC network after expiration of the network-specific time period. | 11-07-2013 |
20130294532 | POWER LINE CARRIER TRANSMISSION APPARATUS AND COMMUNICATION SYSTEM - A power line carrier transmission apparatus according to an aspect of the present invention is a power line carrier transmission apparatus that transmits a transmission symbol via a transmission path. The transmission apparatus includes a frequency/time interleave unit that interleaves the transmission symbol, an OFDM modulation unit that OFDM-modulates the interleaved transmission symbol, a time-domain repeated transmission unit that repeatedly transmits the transmission symbol, which is modulated by the OFDM modulation unit, M times (M is an integer larger than 1) in a time domain. | 11-07-2013 |
20130301744 | METHOD FOR TRANSMITTING A SIGNAL FROM A TRANSMITTER TO A RECEIVER IN A POWER LINE COMMUNICATION NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well. | 11-14-2013 |
20130322554 | Long Preamble and Duty Cycle Based Coexistence Mechanism for Power Line Communication (PLC) Networks - Embodiments of methods and systems for supporting coexistence of multiple technologies in a Power Line Communication (PLC) network are disclosed. A long coexistence preamble sequence may be transmitted by a device that has been forced to back off the PLC channel multiple times. The long coexistence sequence provides a way for the device to request channel access from devices on the channel using other technology. The device may transmit a data packet after transmitting the long coexistence preamble sequence. A network duty cycle time may also be defined as a maximum allowed duration for nodes of the same network to access the channel. When the network duty cycle time occurs, all nodes will back off the channel for a duty cycle extended inter frame space before transmitting again. The long coexistence preamble sequence and the network duty cycle time may be used together. | 12-05-2013 |
20130322555 | Power Dissipation Management for Wired Transceivers - A system, method and apparatus for reducing a power consumed by a physical layer device (PHY). A length of a cable connecting the PHY to a link partner is determined. Based on the length, power provided to one or more components of the PHY, or any portion thereof, is reduced. The power provided is reduced while maintaining a level of reliability specified by a protocol governing operation of the PHY. The length can be determined using time-domain reflectometry (TDR) techniques. Any portion of an echo cancellation filter, a crosstalk filter, an equalizer, a precoder, an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), a forward error correction (FEC) decoder and/or an FEC coder can be powered-down or power-optimized to reduce the overall power consumed by the PHY. The protocol governing operation of the PHY can be IEEE 802.3. | 12-05-2013 |
20130322556 | ON-PACKAGE INPUT/OUTPUT CLUSTERED INTERFACE HAVING FULL AND HALF-DUPLEX MODES - An apparatus and system for controlling traffic on an on-chip network. Embodiments of the apparatus comprise single-ended transmission circuitry and single-ended receiving circuitry on a first chip for coupling with a second chip, the transmission circuitry having impedance matching and lacking equalization, the receiving circuitry lacking equalization, the transmission circuitry and the receiving circuitry having statically configurable features and organized in clusters, wherein the clusters have the same physical layer circuitry design for different configurations of the configurable features, the configurable features including half-duplex mode and full-duplex mode, wherein the first chip and the second chip are on the same package, and wherein a plurality of conductive lines for coupling the first chip with the second chip are matched. | 12-05-2013 |
20130336413 | METHOD, APPARATUS, AND SYSTEM FOR PROCESSING SIGNALS BASED ON TWISTED PAIR - Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method, an apparatus, and a system for processing signals based on a twisted pair. The method for processing signals based on a twisted pair includes: determining a signal processing manner; performing, according to the signal processing manner, digital processing on signals of the extended channels that are to be sent to convert the signals of the extended channels into common mode signals of each twisted pair; and sending the converted common mode signals of the each twisted pair to corresponding twisted pairs for transmission. | 12-19-2013 |
20130336414 | POWER LINE COMMUNICATION SYSTEM AND METHOD - Exemplary embodiments of the present invention relate to a power line communication (PLC) system. For example, the PLC system may include a PLC server configured to provide electrical power and electronic communications through a PLC bus to a number of electronic devices, such as an instrument cluster, infotainment interface, rear-seat entertainment console, aftermarket accessories, and the like. The PLC system may also include a power system that may be coupled to an electrical grid for charging a battery associated with one or more of the electronic devices. The power system may be communicatively coupled to the PLC bus, enabling the devices coupled to the PLC bus to communicate with a service provider through the electrical grid. The communications between the devices coupled to the PLC bus and remote devices coupled through the electrical grid may be conducted using a common communication protocol. | 12-19-2013 |
20130343471 | SIGNAL TRANSMISSION CIRCUIT, SIGNAL TRANSMISSION SYSTEM, AND SIGNAL TRANSMISSION METHOD - A signal transmission circuit includes a driver circuit that includes complementary inverters, each of the complementary inverters including a plurality of transistor switches, each of the plurality of transistor switches including a pair of transistors, one of the pair of transistors operating in a saturation region and another of the pair of transistors operating in a triode region to cause a certain impedance, and that drives each of the plurality of transistor switches in accordance with complementary signals so as to output complementary voltages to a transmission line; and first voltage sources that supply operating voltages to the driver circuit so as to adjust amplitudes of the complementary voltages output from the driver circuit to the transmission line. | 12-26-2013 |
20140016713 | PAIRING PLC DEVICES - A method for pairing a first power line communication device with a second power line communication device is disclosed, the method includes the first device triggering a pairing initiating state responsive to sensing a connection of a data cable with the second device; entering an appropriate pairing initiation state, the pairing initiation state being either an add device state or a join device state; and performing pairing with the second device. | 01-16-2014 |
20140023151 | METHOD AND DEVICE FOR CANCELLING INTERFERENCE BETWEEN A SIGNAL CARRIED BY A CARRIER POWER LINE AND A SIGNAL CARRIED BY A TELEPHONE LINE - The present invention concerns a method and device for cancelling interference between a signal carried by a carrier current line of a system distributing digital services at the home of a subscriber and a signal carried by a telephone line of said system that is situated close to the carrier current line. The method is characterised in that it consists of obtaining the signal carried by the carrier current line, filtering it in order to obtain an estimate of the signal that disturbs the signal carried by the telephone line and subtracting this estimate from the signal carried by the telephone line. | 01-23-2014 |
20140023152 | COMMUNICATION APPARATUS, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD - In communication method for communicating via a transmission channel to which first communication apparatuses communicating based on a first communication system, second communication apparatuses communicating based on a second communication system, and third communication apparatuses communicating based on a third communication system are connected, a data transmission domain and a notification domain for notifying a data transmission within the data transmission domain are allocated to the first communication apparatuses, the second communication apparatuses, and the third communication apparatuses, respectively. In the communication method, notices of the data transmission for each of the first communication apparatuses, the second communication apparatuses and the third communication apparatuses are transmitted within the notification domain, and the data transmission domain is reallocated in accordance with the notices transmitted from the first, second and third communication apparatuses. | 01-23-2014 |
20140023153 | MULTIPLE INPUT, MULTIPLE OUTPUT (MIMO) COMMUNICATION SYSTEM OVER IN-PREMISES WIRES - A multiple input, multiple output (MIMO) communications unit includes a multiplicity of analog front ends and a MIMO processor. Each analog front end is connectable to a different two of the wires in a subscriber premises and each handles data of one channel. The MIMO processor processes together the data of the channels. In one embodiment, the wires are the power line wires in a subscriber premises, including the phase, neutral and ground power line wires. In another embodiment, the wires are pairs of telephony wires. | 01-23-2014 |
20140029678 | DATA COMMUNICATIONS OVER COAXIAL CABLE - A system for providing data communications over coaxial cables. The system may include a splitter configured to receive a first signal of a first signal type from a first transmission medium and to split the first signal into a first and second signal parts. The system may also include an adapter coupled to the splitter and configured to receive the first signal part and a second signal of a second signal type that is configured for transmission on a second transmission medium. The adapter may be further configured to combine and to output the first signal part and the second signal on a first cable of the first transmission medium. The system may also include a filter coupled between the splitter and the adapter and configured to prevent the second signal type from reaching the splitter. | 01-30-2014 |
20140029679 | POWERLINE COMMUNICATION DEVICE - A Powerline Communications (PLC) device includes a processing module, memory coupled to the processing module, and a PLC interface coupled to the processing module. The PLC device transmits a plurality of PLC queries, two of the plurality of PLC queries complying with differing and incompatible PLC communication standards. It then receives a plurality of responses from a plurality of other PLC devices, two responses received from respective PLC devices complying with two differing and incompatible PLC communication standards. The PLC device then directs each of the two PLC devices to transmit communications of the differing and incompatible PLC communication standards in an attempt to avoid PLC communication conflicts. The PLC device may establish non-PLC communications with a remote communications device. The PLC device may bridge communications between remote PLC devices and between a remote PLC device and a remote non-PLC device. | 01-30-2014 |
20140044200 | POWER SUPPLY CONTROL DEVICE, METHOD OF CONTROLLING THE SAME, AND POWER SUPPLY CONTROL SYSTEM - A power control server outputs power through a power line, outputs a high-frequency signal and communicates with an electronic device to which the power is output, through the power line, and reads out device information including at least identification information that identifies the electronic device, obtains user information related to a user who uses the electronic device, and transmits the obtained user information and the read out device information to an information management server. The information management server receives the user information and the device information transmitted from the power control server, and performs user registration related to the electronic device identified by the identification information included in the device information, based on the received user information. The present technology can be applied to a power supply control system that supplies the power to an electronic device, for example. | 02-13-2014 |
20140050273 | ROBUST HANDSHAKE PROCEDURE IN CROSS-TALK ENVIRONMENTS - Embodiments of the invention provide a robust mechanism to isolate transceivers that attempt to train on a FEXT channel during the handshake phase and to abort a false activation. According to aspects of the invention, either or both transceiver acknowledges the unique identity of the other transceiver during the handshake phase. This ensures that the transceiver progresses to training and beyond with only one other remote transceiver. | 02-20-2014 |
20140056369 | Control Traffic Overhead Reduction during Network Setup in PLC Networks - A power line communication device connected to a power line communication network that includes a transceiver to transmit messages to a plurality of nodes on the network and to receive messages from the plurality of nodes on the network, and a processor coupled to the transceiver to evaluate received messages and generate messages to transmit. The processor, upon receiving a promotion needed message from an additional power line communication (PLC) device joining the network, is to determine whether data communication has already been established with a base node of the network, determine whether the device is already seeking promotion to be a switch node or has already been promoted to the switch node, and determine a signal quality of the received promotion needed message from the additional PLC device joining the network. Based on those determinations, the processor is to adjust a frequency at which to transmit a promotion request based on a number of promotion requests received from the plurality of other nodes on the network and a number of promotion needed messages received. | 02-27-2014 |
20140064387 | POWER DISTRIBUTION LINE COMMUNICATIONS WITH COMPENSATION FOR POST MODULATION - A system for communicating data over power utility lines includes a plurality of endpoint devices. The endpoint devices can have modulation circuits configured and arranged to modulate data using multiple-orthogonal frequency sub-channels. The endpoint devices can also have a power line interface circuit configured and arranged to transmit the modulated data over a power utility line. A detection module can be configured and arranged to detect undesirable post modulation of a communication from one of the plurality of endpoint devices and to generate a signal responsive to the detected post modulation. The endpoint devices can then set a spacing between the multiple orthogonal frequency sub-channels in response to the signal responsive to the detected post modulation. | 03-06-2014 |
20140064388 | POWER LINE COMMUNICATION SYSTEM FOR VEHICLE - In a power line communication system, a master uses a twisted pair wire as a power line and a communication line and outputs a power signal and a data modulation signal to a slave. The slave includes an aperture antenna, a power monitoring portion, and a determining portion. The aperture antenna receives the power signal via the twisted pair wire by electromagnetic induction coupling of an electromagnetic field generated at the twisted pair wire in accordance with an applied current of the twisted pair wire. The aperture antenna has an aperture region facing an aperture region between twists of the twisted pair wire. The power monitoring portion monitors a power of the power signal received via the first aperture antenna. The determination portion determines whether to use another operation power received via the twisted pair wire on the basis of the power monitored by the power monitoring portion. | 03-06-2014 |
20140064389 | SYSTEM AND METHOD TO MONITOR POWERLINES - The invention encompasses a system and method for monitoring a power line. In certain embodiments, a system emits a series of signals that allow for analytic analysis of a power line. For example, by taking multiple signal readings, it is possible to detect an average height reading of a power line and observe long-term trends in the time delay from signal emission to reception of an echo-signal. This allows for accurate measurement of various physical parameters of a power line, for example, the height of the power line above the ground. | 03-06-2014 |
20140072059 | POWER LINE COMMUNICATION NETWORK AND DISCOVERY PROCESS - An apparatus for a power line communication network includes a power line transmitter/receiver, a processor coupled to the power line transmitter/receiver, and memory accessible to the processor. The processor is configured to store a routing table in the memory for routing packets in an upward direction towards a data concentrator (DC). However, no routing table is provided for routing packets in a downward direction away from the DC. Instead of using a routing table to route packets in the downward direction, the processor is configured to employ source routing in the downward direction. | 03-13-2014 |
20140072060 | RECEIVER, APPARATUS, AND METHODS FOR WIRELESSLY RECEIVING DATA FROM A POWER INFRASTRUCTURE - Apparatuses, receivers, systems and methods for receiving data via a power line infrastructure. An exemplary apparatus includes a base station configured to receive a signal from a power line of a structure by coupling to the power line through an electrical outlet. The base station may include an impedance matching circuit configured to match an impedance of the power line of the structure, and a receiver coupled to the impedance matching circuit. The receiver may be configured to demodulate the signal received from the power line of the structure, convert the demodulated signal into a digital signal, and provide the digital signal to a decoder. | 03-13-2014 |
20140079142 | ADVANCED SWITCH NODE SELECTION FOR POWER LINE COMMUNICATIONS NETWORK - An algorithm for the promotion of terminal nodes to switch nodes in a PLC network reduces overall network overhead and collisions, while ensuring the appropriate selection of a switch node and minimizing the number of levels in a PLC network. It also ensures that the terminal nodes with appropriate signal-to-noise ratios (SNRs) are promoted. It is desirable to have a network with fewer levels. The disclosed approach favors the nodes that are closer to the DC to promote them as switch nodes. This is achieved by waiting for a smaller number of PNPDUs for a node that is closer to the DC in comparison to a node that is farther away from the DC. | 03-20-2014 |
20140079143 | SIGNAL INJECTION THROUGH ELECTRIC NETWORK USING DIFFERENT MODES - A system including a coupler to couple a signal to a plurality of conductors of an electric network and a transmitter to select a plurality of modes to inject the signal into the plurality of conductors and to transmit the signal via the plurality of conductors. The plurality of modes is selected from a group consisting of a first mode, a second mode, and a third mode. The first mode includes injection of the signal through a selective combination of the plurality of conductors and circulation of current through ground. The second mode includes injection of the signal through a first conductor and return through a second conductor. The third mode includes injection of the signal through one or more first conductors and return through one or more second conductors. The first conductors are different than the second conductors. | 03-20-2014 |
20140086346 | METHOD AND SYSTEM FOR REMOVAL OF BASELINE WANDER AND POWER-LINE INTERFERENCE - A system removes noise from a signal by dividing the signal into at least one processing block, constructing a transform matrix in response to the noise of the signal, estimating a transform coefficient of the signal and the constructed transform matrix, reconstructing the signal by using the estimated transform coefficient and the constructed transform matrix and displaying the reconstructed signal. | 03-27-2014 |
20140093000 | METHOD FOR TRANSMITTING A SIGNAL FROM A TRANSMITTER TO A RECEIVER IN A POWER LINE COMMUNICATION NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting a signal from a transmitter over a channel to a receiver on a Power Line Network, wherein said signal is OFDM-modulated on a set of sub-carriers, is proposed, wherein an OFDM tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said OFDM tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well. | 04-03-2014 |
20140093001 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND METHOD FOR OPERATING COMMUNICATION SYSTEM - A communication system according to the present invention comprises a first communication device and a second communication device for performing power line communication using a power line as a transmission line with the first communication device, and in the communication system, the first communication device has a detection means for detecting a zero crossing timing of a commercial power supply and a transmitting means for transmitting a transmission signal modulated in OFDM mode at the zero crossing timing, the transmitting means first transmits a header signal (HS) having a preamble as the transmission signal when the power line communication is started, and the transmitting means transmits a data signal (DS) having no preamble as the transmission signal after the header signal (HS) is transmitted, and the second communication device has a receiving means for performing a demodulation process on the transmission signal which is received, to thereby obtain receive data. | 04-03-2014 |
20140105311 | NON-INTERRUPTIVE FILTERING OF TRANSMISSION LINE COMMUNICATIONS - Systems and methods according to aspects of the subject technology provide non-interruptive filtering of transmission line communications. The non-interruptive filtering may physically isolate, in the frequency domain, independent networks that share a common transmission media, such as mains wires that are used to deliver both alternating current (AC) power and power line communication signals. The isolation provided by the non-interruptive filtering prevents the transmissions from the independent networks from interfering with each other. In one or more implementations, the non-interruptive filtering may be provided by one or more filters that include cores, such as ferrite cores, around which two mains wires, e.g. a mains live wire and a mains neutral wire, can be wound in opposite directions, respectively. Currents traveling on the mains wires through the filter in opposite phases cancel each other out, thereby blocking symmetric power line transmissions, while allowing AC power to pass through. | 04-17-2014 |
20140105312 | DATA DURING ANALOG AUDIO - This application discusses among other things, apparatus and method for transmitting data with an analog signal without significantly distorting the analog signal. In an example, an apparatus can include an audio channel, a capacitor coupled to a first conductor of the audio channel, the capacitor configured to couple an analog representation of a digital data signal with an analog audio signal on the audio channel, and a frequency modulator configured to receive the digital data signal and to modulate a frequency of an output signal of the frequency modulator based on a logic level of the digital data signal, wherein the analog representation of the digital data signal includes the frequency of the output signal of the frequency modulator. | 04-17-2014 |
20140105313 | Method to Use a Preamble with Band Extension in Power Line Communications - Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line | 04-17-2014 |
20140105314 | Initialization and Tracking for Low Power Link States - A method of coordinating a plurality of transceiver units (TUs), the method comprising receiving an initialization intent notification from a first TU in the plurality of TUs, sending a low-power link state (LPLS) transition notification to a second TU in the plurality of TUs, receiving a LPLS transition complete notification from the second TU in response to the second TU transitioning from a first mode to a second mode, wherein in the first mode the second TU is in an LPLS with a long inactivity period (LPLS-L), sending an able to initialize notification to the first TU, and performing a vector training procedure using the first TU and the second TU. | 04-17-2014 |
20140112397 | Detecting and Encoding Frame Control Headers (FCH) - Embodiments of the invention provide a method for discriminating between two types of encoding schemes for the frame control header (FCH) used in G3-type narrow band OFDM communications. The two modes for encoding are Differential with respect to the previous Symbol (DS) and Differential with respect to the Preamble (DP). This mode is sometimes referred to as “coherent” mode | 04-24-2014 |
20140112398 | UNIVERSAL OFDM SYNCHRONIZER FOR POWER LINE COMMUNICATION - A universal OFDM synchronizer for power line communication is provided. The universal OFDM synchronizer can be used for all known OFDM standards and allows maximum flexibility with best performance. The OFDM synchronizer comprises of a preamble averaging, a correlator and a peak discriminator. The OFDM synchronizer can be used with signals having 256 sample size preamble or 512 sample size preamble. | 04-24-2014 |
20140119461 | SIGNAL TRANSMISSION DEVICE - A signal transmission device includes: a detector circuit that detects impulse noises having been applied to the transmission line, the detector circuit being composed of an analog circuit; a noise counter that counts the impulse noises detected by the detector circuit and observes occurrence intervals of the impulse noises; and a data length changer that varies a data length of the communication frames depending on the occurrence intervals of the impulse noises observed by the noise counter. | 05-01-2014 |
20140119462 | Method for Accurate Distribution of Time to a Receiver Node in an Access Network - An apparatus comprising a customer node configured to couple to an access node and to receive via a channel from the access node a time of day (TOD) value and a corresponding sample index (SNUM) value, wherein the TOD value and the SNUM value are used to estimate a second time of day (TOD′) value based on a propagation delay of the channel (L-Delay), and wherein the TOD value and the TOD′ value are used to estimate a second SNUM value (SNUM′) based on L-Delay and a plurality of parameters. | 05-01-2014 |
20140126654 | COMMUNICATION SYSTEM - An ECU of a transmission side performs a first conversion of converting a single bit of original baseband data into a four-bit bit pattern, which indicates one of two kinds of “0” and “1” of the single bit, to thereby prepare after-conversion baseband data, and transmits the after-conversion baseband data as transmission data to a transmission line. An ECU of a reception side restores the original baseband data by performing a second conversion of the received transmission data. The second conversion is the reverse of the first conversion. The ECU of the transmission side transmits the transmission data that includes a training pattern, which indicates a bit period of the transmission data, in addition to the after-conversion baseband data. The ECU of the reception side specifies the bit period of the transmission data based on the training pattern in the received transmission data. | 05-08-2014 |
20140126655 | Compatible Communication Between Devices using Different Communication Protocols - In a method for communicating with a plurality of devices using different communication protocols, a signal is received at a transceiver device from a neighbor device via a physical layer of a communication media. At a first time the signal contains a header frame from a first device conforming to a first communication protocol and at another time the signal contains a header frame from a second device conforming to a second communication protocol. The transceiver determines which of the different communication protocols is being used by each of the plurality of devices. The transceiver may then process inbound payload data using the indentified protocol type. Data frames are transmitted to the first device using the first communication protocol and data frames are transmitted to the second device using the second communication protocol. | 05-08-2014 |
20140133585 | POWER LINE COMMUNICATION SYSTEM AND CONTROL METHOD THEREOF - A power line communication system includes a power distribution device connected to two power lines, a plurality of power line communication devices and a first coupler device electrically connected between the first power line and the second power line. The first coupler device is configured at the last end of the power line communication system. Before a transmitting device transmits data to a receiving device, the first coupler device determines whether to couple the power lines with each other according a first signal quality between the transmitting and the receiving device when the power lines are not coupled with each other and a second signal quality between the transmitting and the receiving device when the power lines are coupled with each other. | 05-15-2014 |
20140140419 | Configurable, Power Supply Voltage Referenced Single-Ended Signaling with ESD Protection - A single-ended data transmission system transmits a signal having a signal voltage that is referenced to a power supply voltage and that swings above and below the power supply voltage. The power supply voltage is coupled to a power supply rail that also serves as a signal return path. The signal voltage is derived from two signal supply voltages generated by a pair of charge pumps that draw substantially same amount of current from a power supply. | 05-22-2014 |
20140146898 | METHOD AND APPARATUS FOR DATA COMMUNICATIONS OVER POWER LINES - A computer-implemented method of transferring data from a source to a destination on an alternating current (AC) power waveform propagating over a utility power distribution network, where the computer includes a processor operatively coupled to the utility power distribution network via a power supply, includes sending a request over the power distribution network to create a virtual communication channel between the source and the destination on the power distribution network. The method further includes generating, by the processor, a data packet to be transmitted from the source to the destination via the virtual communication channel, and modulating the power drawn from the power supply to encode a series of static pulses onto the AC at predetermined intervals according to a function of frequency that is unique to the virtual communication channel. | 05-29-2014 |
20140146899 | METHOD AND APPARATUS FOR DATA COMMUNICATIONS OVER POWER LINES - A computer-implemented method of transferring data from a source to a destination on an alternating current (AC) power waveform propagating over a utility power distribution network, where the computer includes a processor operatively coupled to the utility power distribution network via a power supply, includes sending a request over the power distribution network to create a virtual communication channel between the source and the destination on the power distribution network. The method further includes generating, by the processor, a data packet to be transmitted from the source to the destination via the virtual communication channel, and modulating the power drawn from the power supply to encode a series of static pulses onto the AC at predetermined intervals according to a function of frequency that is unique to the virtual communication channel. | 05-29-2014 |
20140146900 | Building, Transmitting, and Receiving Frame Structures in Power Line Communications - Systems and methods for building, transmitting, and receiving frame structures in power line communications (PLC) are described. Various techniques described herein provide a preamble design using one or more symbols based on a chirp signal that yields a low peak-to-average power ratio (PAPR). According to some techniques, the preamble may be constructed with one or more different types and/or number of symbols configured to identify a PLC domain operating in close physical proximity to another PLC domain. According to other techniques, one or more preamble symbols may be interspersed within a header portion of a PLC frame to facilitate estimation of a frame boundary and/or sampling frequency offset, for example, in the presence of impulsive noise. According to yet other techniques, a PLC detector may be capable of receiving and decoding two or more types of PLC frames (e.g., using different PLC standards). | 05-29-2014 |
20140146901 | DIGITAL TRANSMITTER - An equalizer provided in a digital transmitter compensates for attenuation in a signal channel to a digital receiver. The equalizer generates signal levels as a logical function of bit history to emphasize transition signal levels relative to repeated signal levels. The preferred equalizer includes an FIR transition filter using a look-up table. Parallel circuits including FIR filters and digital-to-analog converters provide a high speed equalizer with lower speed circuitry. The equalizer is particularly suited to in-cabinet and local area network transmissions where feedback circuitry facilitates adaptive training of the equalizer. | 05-29-2014 |
20140153655 | VEHICULAR POWER LINE COMMUNICATION SYSTEM AND TRANSMITTER - An opening area between twisted portions of a pair of twisted wires is arranged to be opposite to an opening area of an aperture antenna of each of communication apparatuses. Thus, the use of the pair of twisted wires permits division of electric power among the communication apparatuses and also communication of signals. In particular, among the opening areas between the twisted portions of the pair of twisted wires, only an opening area, which is in between the twisted portion and the twisted portion and is opposite to the aperture antenna, is formed to be larger than a different opening area. This provides a vehicular power line communication system and a transmitter in the system; the system strengthens electromagnetic induction connection between the transmitter and the receiver to permit power line communication. | 06-05-2014 |
20140161200 | System to Determine Associated Electronic Devices - Various embodiments of the invention allow for electronic labeling and identification of electronic equipment. Contact-based and contactless systems and methods to electronically associate hardware are described. | 06-12-2014 |
20140161201 | POWER LINE COMMUNICATION DEVICE, SOLAR POWER GENERATION SYSTEM, POWER LINE COMMUNICATION METHOD, AND POWER LINE COMMUNICATION PROGRAM - Provided are a power line communication device and the like capable of keeping attenuation of electric power of a control signal to a minimum. The power line communication device includes a communication unit ( | 06-12-2014 |
20140169485 | ASYMMETRIC CHANNELS IN POWER LINE COMMUNICATIONS - Apparatus (and related methods) for a power line communication network include a processor configured to receive beacons over a communication interface. The processor determines a link quality indicator (LQI) for each received beacon and ignores the beacons for at most a predetermined maximum number of beacon receptions when each LQI is below a threshold. The processor responds to a received beacon if the LQI for such received beacon exceeds the threshold or if a predetermined maximum number of beacons have been received with LQIs below the threshold. | 06-19-2014 |
20140177736 | POWER DISTRIBUTION SYSTEM UTILIZING DIGITAL COMMUNICATIONS TO DETERMINE THE CONFIGURATION THEREOF - Three-phase electrical power is used to distribute electrical power to electronic devices in a cluster. A power distribution system includes circuit breaker panels and power distribution units for providing electrical power to the electronic devices. The electrical connections within the power distribution system form a digital communication network that communicates identification codes for the purpose of identifying each electrical connection in the power distribution system. A cluster management entity may then collect the identification codes associated with each electrical connection in order to detect the actual configuration of the power distribution system. By further knowing the load of each electronic device and their association with entities of the power distribution system, the cluster management entity may determine the load on each phase and take steps to balance the load. | 06-26-2014 |
20140177737 | SYSTEM AND METHOD FOR MONITORING AN ELECTRICAL DEVICE - Disclosed herein is a device for monitoring the condition of a branch circuit. A device contains a switch that is normally open to prevent the occurrence of electric shock. An optical prong detector is provided to determine weather both the hot and neutral prongs of a plug have been inserted into the receptacle. The receptacle provides conductance upon determination of insertion of a plug into the receptacle. Additional features include GFI detection, current detection heat detection warning lights and an audible alarm. The receptacle includes communication abilities with remote devices to transmit data indicative of the state of the device. | 06-26-2014 |
20140177738 | DETERMINING THE CONFIGURATION OF A POWER DISTRIBUTION SYTEM - A method provides digital communication over an electrical power supply cable between a management processor in a circuit breaker panel (CBP) and a management processor in a power distribution unit (PDU), wherein the CBP has a CBP identification code (ID) and the PDU has a PDU ID. The digital communication provides the CBP management processor with the PDU ID for the PDU that is connected through the electrical power supply cable to the CBP, or the digital communication provides the PDU management processor with the CBP ID for the CBP that is connected through the electrical power supply cable to the PDU. The method further comprises identifying the electrical power supply cable connection by communicating first and second endpoints of the electrical power cable connection to a cluster management entity, wherein the first endpoint is identified by the CBP ID and the second endpoint is identified by the PDU ID. | 06-26-2014 |
20140177739 | TRANSMISSION DEVICE AND NODE FOR THE SAME - Nodes are connected in parallel between two transmission lines and configured to utilize a telecommunications standard of a differential transmission. At least one of the nodes includes two input/output terminals, a driver, a receiver, a resistor, and a comparator. The two input/output terminals are connected to the two transmission lines. The driver includes two output terminals connected to the two input/output terminals. The receiver includes two input terminals connected to the two input/output terminals. The resistor is connected between each of the two input/output terminals and one of a grand and a power supply voltage. The comparator compares a voltage between the transmission lines with a reference voltage to determine whether the transmission lines are in an idle state or in a communication state. | 06-26-2014 |
20140185694 | SIGNAL RECEIVING DEVICE, SEMICONDUCTOR DEVICE, AND SIGNAL RECEIVING METHOD - A signal receiving device obtains information data based on a plurality of signals received at a plurality of antennas. The signal receiving device is divided into a first receiving unit and a second receiving unit. The first receiving unit carries out certain part of an entire receiving process, and the second receiving unit carries out the remaining part of the receiving process. The first receiving unit demodulates and synthesizes the received signals and decodes the synthesized signal to recover received information data. The first receiving unit modulates the received information data to obtain a modulation signal and transmits the modulation signal to the second receiving unit via a transmission cable. The second receiving unit recovers the received information data by demodulating the modulation signal received via the transmission cable, and obtains the information data by decoding the recovered information data. | 07-03-2014 |
20140192905 | APPARATUS FOR CONVERTING TERMINAL POLARITY FOR R S COMMUNICATION - An apparatus for converting terminal polarity for RS communication includes a comparator configured to discriminate polarities of a first signal line and a second signal line by comparing voltage levels indicated on the first and second signal lines of a cable for RS-485 communication, a switch unit configured to connect a TRXD+ terminal to the first signal line and connect a TRXD− terminal to the second signal line, or to connect a TRXD+ terminal to the second signal line or connect a TRXD− terminal to the first signal line in response to a provided switch control signal, and a switch controller configured to transmit the switch control signal to the switch unit in response to a polarity discrimination result by the comparator relative to the first signal line and the second signal line. | 07-10-2014 |
20140192906 | DYNAMIC MODULATION SELECTION - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transmitting data. In one aspect, a method obtains a baseline data rate for transmissions from a node that are received over a channel of a power line communications system and a set of available modulation techniques for the node. The set of available modulation techniques can include at least two modulation techniques with which the node is configured to encode data that are transmitted over the channel. Using the set of available modulation techniques, a modulation technique that is capable of providing at least the baseline data rate with at least a threshold confidence for the node is selected. In turn, data is provided to the node specifying the selected modulation technique. | 07-10-2014 |
20140192907 | SPLITTER - A splitter includes, in parallel between trunk terminals and branch terminals, a signal branching circuit that blocks distributed power and passes a PLC communication signal and a power branching circuit that blocks the communication signal and passes the distributed power. In the signal branching circuit, impedance viewed from the branch terminal side is matched with characteristic impedance of a power line and impedance viewed from the trunk terminal side is higher than impedance viewed from the branch terminal side, in the frequency band of the communication signal. In the power branching circuit, input/output impedance is set to be sufficiently higher than the impedance of the signal branching circuit viewed from the trunk terminal side, in the frequency band of the communication signal. | 07-10-2014 |
20140198859 | POWER LINE COMMUNICATION SYSTEM SYNCHRONIZATION - Systems and methods for synchronizing a power line communication system including a power line and one or more devices communicatively coupled to the power line. A mains frequency of the power line is estimated at the devices, and corresponding local frequencies of the devices are adjusted based on the corresponding estimated mains frequency. Data signals are transmitted from or received by the devices based on the adjusted local frequencies. | 07-17-2014 |
20140198860 | POWER LINE CARRIER COMMUNICATION APPARATUS - A power line carrier communication apparatus which prevents leakage of an electromagnetic wave and stably operates while employing a simplified configuration is provided. | 07-17-2014 |
20140198861 | COMMUNICATION APPARATUS, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD - In communication method for communicating via a transmission channel to which first communication apparatuses communicating based on a first communication system, second communication apparatuses communicating based on a second communication system, and third communication apparatuses communicating based on a third communication system are connected, a data transmission domain and a notification domain for notifying a data transmission within the data transmission domain are allocated to the first communication apparatuses, the second communication apparatuses, and the third communication apparatuses, respectively. In the communication method, notices of the data transmission for each of the first communication apparatuses, the second communication apparatuses and the third communication apparatuses are transmitted within the notification domain, and the data transmission domain is reallocated in accordance with the notices transmitted from the first, second and third communication apparatuses. | 07-17-2014 |
20140205026 | DEVICES AND METHODS FOR POWER CONSUMPTION CONTROL IN POWERLINE COMMUNICATIONS SYSTEMS AND APPARATUS - The present disclosure includes systems and techniques relating to power line communications (PLC) systems and apparatus. In some implementations, a method includes determining information regarding a potential data rate to be used with a powerline communications (PLC) channel, reducing a bias current or voltage of an analog front end of a PLC transceiver based on the determined information to reduce power consumption of the analog front end of the PLC transceiver, and transmitting or receiving data over the PLC channel with the reduced bias current or voltage of the analog front end of the PLC transceiver. | 07-24-2014 |
20140205027 | COMMUNICATION APPARATUS, SIGNAL SUPERIMPOSING CIRCUIT, AND METHOD FOR SUPERIMPOSING SIGNALS - A communication apparatus according to the present invention comprises first communication means configured to transmit differential signals serving as first information over a first wire pair; second communication means configured to transmit differential signals serving as second information over a second wire pair; and third communication means configured to transmit third information by transmitting one of differential signals over the first wire pair and transmitting the other of the differential signals over the second wire pair. It is possible to provide a communication apparatus that spurious emission is suppressed. | 07-24-2014 |
20140211863 | SWITCHING COMMUNICATION DEVICES BETWEEN DIFFERENT COMMUNICATION MEDIA - A service provider device of a local communication network communicates a first frame with an electric vehicle via a first communication medium to associate with the electric vehicle, establish a communication link with the electric vehicle, and to add the electric vehicle to the local communication network. After an association process between the electric vehicle and the service provider device is successfully completed, the electric vehicle and/or the service provider device can execute operations that extend the utility of their respective communication devices by switching to a new communication medium. By switching to the new communication medium, the electric vehicle and/or the service provider device can connect to a remote communication network. The service provider device communicates a second frame with at least a network device of the remote communication network via the new communication medium. | 07-31-2014 |
20140211864 | ZERO CROSSING INDICATOR DEVICE - An alternating current (AC) zero-crossing indicator apparatus including a current adjusting circuit for adjusting a DC signal current for a duration of time the same as the duration of a received zero-crossing detection signal. The zero-crossing indicator apparatus additionally includes a voltage retainer for maintaining a constant DC voltage applied to a connected load during the adjusting of the DC signal current. Also included is a zero-crossing sensor for generating a zero-crossing indication signal responsive to sensing of the adjusting of the DC signal current. | 07-31-2014 |
20140211865 | Method and System for Modularized Configurable Connector System for Ethernet Applications - A first modular Ethernet connector and a coupled corresponding second modular Ethernet connector may communicate data based on Ethernet standards. The Ethernet connectors may be configurable and comprise at least twelve contact positions. Different connector configurations may support widely different data rates. The Ethernet connectors may fit within a handheld device and/or may be sized to fit greater than twenty-four connectors in a 1 RU faceplate of a 19 inch rack. A variable number of conductor and/or ground contact positions may be unpopulated or populated with contacts of various materials. The Ethernet connectors may be configured with a properly fitting latching mechanism, with connector shielding and/or to ground cable shielding. The Ethernet connectors may be sized and fitted for secure coupling. The Ethernet connectors may be coupled to a twisted pair cable. Differential pair conductors are terminated adjacently. The Ethernet connectors may comprise POE, a PHY and/or an antenna. | 07-31-2014 |
20140211866 | TELECONTROL ENERGY-SAVING APPARATUS FOR SIMULTANEOUS TRANSMISSION OF MULTIPLE SIGNALS WITH POWERLINE TECHNOLOGY - A telecontrol energy-saving apparatus for simultaneous transmission of multiple signals with powerline technology comprises a supervision control unit, and at least one peripheral unit, equipped with an electricity network user device, and with a digital instrument. | 07-31-2014 |
20140211867 | COORDINATING POWER DISTRIBUTION LINE COMMUNICATIONS - Aspects of the present disclosure are also directed towards a method that includes maintaining a transmission period which has a start time and an end time synchronized to metrological time. Further, this method, in response to the start time, begins transmission of a frame, which includes a plurality of symbols. This transmission occurs over power distribution lines that carry power using alternating current (AC). This method also includes synchronizing a transmission time for each symbol of the plurality of symbols according to a time-based parameter of the AC. In response to reaching an end of the frame, a synchronization symbol period is determined for a synchronization symbol, as a function of the transmission times, for the plurality of symbols and time from the end of the frame to the end time. The synchronization symbol is then transmitted on the power distribution lines. | 07-31-2014 |
20140219368 | METHODS AND APPARATUS FOR ENABLING AND DISABLING SCRAMBLING OF CONTROL SYMBOLS - Methods and apparatus for the selection and/or configuration of scrambling operations to accommodate e.g., both scrambling and non-scrambling connections (such as to e.g., legacy type devices). In one embodiment, media interface devices (such as e.g., HDMI (High-Definition Multimedia Interface)) devices may provide enhanced scrambling capabilities; solutions disclosed herein provide, among other things, support for both enhanced scrambling capable devices and legacy devices, and enable a device to determine the scrambling capabilities of a connected device. | 08-07-2014 |
20140219369 | POWER LINE COMMUNICATIONS SIGNAL AGGREGATION AND SWITCH - A method, system, and devices are provided that create a network over existing power lines. Two or more modules can establish the network for two or more devices in communication with each other. The modules include components that register device(s) and determine the processing of the data signal being sent over the power line network. | 08-07-2014 |
20140233661 | MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEM - A multiple-input multiple-output (MIMO) capable system is contemplated. The communication system may include a signal processor configured to separate an input stream into multiple signal paths to facilitate simultaneous transport through a communication medium. The capability to simultaneously transmit multiples signal paths may be beneficial in order to maximize throughput and/or minimize expense. | 08-21-2014 |
20140241440 | HIGH SPEED DATA CABLE USING AN OUTER BRAID TO CARRY A SIGNAL - A high speed video cable carries signals according to the High-Definition Multimedia Interface (HDMI), and includes a raw cable and may include a boost device. The raw cable includes coaxial lines which are covered by an outer metallic braid. Each of four high speed video signals is carried on the inner conductors of a pair of coaxial lines. Lower speed signals are carried on the galvanically or capacitively coupled shields of a pair of coaxial lines, as well as the braid of the cable, thus permitting fourteen HDMI signals to be carried in a cable comprising only eight coaxial lines, resulting in a simpler and lower cost production and assembly of the cable. | 08-28-2014 |
20140241441 | POWER LINE COMMUNICATIONS USING FRAME CONTROL DATA BLOCKS FOR DATA TRANSPORT - Method, systems, and apparatus include a communication device configured to receive a data unit in accordance with a power line communications protocol, to extract data within the data unit to provide extracted data, and to process the extracted data in accordance with a non-power line communication protocol. Embodiments also describe a communication device configured to format data according to a non-power line communication protocol as part of a data unit conforming to a power line communication protocol, to redundantly encode the data unit across a plurality of subcarriers in accordance with the second communication protocol, and to transmit the data unit in accordance with the second communication protocol to another communications device. | 08-28-2014 |
20140247891 | POWER LINE COMMUNICATION METHODS AND DEVICES - A power line communication method for realizing data communication between at least one first or sending power line communication partner device and at least one second or receiving power line communication partner device. The method checks transmission conditions of a plurality of possible communication channels, thereby generating transmission condition data descriptive for the communication conditions of the respective possible communication channels. Additionally, communication conditions of the plurality of possible communication channels are selected as actual communication conditions based on the transmission condition data. | 09-04-2014 |
20140247892 | Systems, Methods, and Devices for Networking Over High Impedance Cabling - Systems, methods, and processor readable media for distributing digital data and electrical power to a plurality of devices over high-impedance cables are disclosed. Certain embodiments include a gateway device connected to a power source, a first device connected to the gateway device by a cable, the cable being a high-impedance cable having at least two conductive paths, and wherein the first device receives electrical power and digital data from the gateway device via the cable over the same conductive path of the cable, a second device connected to the gateway device by the cable wherein the second device receives power and digital data from the gateway device via the cable over the same conductive path, and wherein the power source provides power to the first and second devices via the cable, and wherein the second device is connected to the gateway device through the first device via a daisy-chain topology. | 09-04-2014 |
20140254693 | AIRCRAFT DATA TRANSMISSION MODULES - Provided are methods and systems for terrestrial data transmission between aircrafts and external networks, such as airline and/or airport computer systems. When an aircraft is parked at the gate, the aircraft is connected to and powered by an electrical cable, such as a stinger cable. This cable may be also be used for wired data transmission between the aircraft and the gate using broadband over power line (BPL) technology. The gate and the aircraft are each equipped with a BPL module. The aircraft may include other communication modules, such as a Wi-Fi module, a cellular module, and/or an Ethernet module. These other modules can be also used for data transmission in addition to or instead of communication through the BPL module. A communication link manager may be used to select one or more communication modules depending on availability of communication links, costs, speed, and other parameters. | 09-11-2014 |
20140269947 | METHOD AND DEVICE FOR REDUCING VECTORING-ENHANCED NOISE IN COPPER TELEPHONE LOOPS - A method and a corresponding device for reducing enhanced noise generated as a result of applying vectoring to signals transmitted and subsequently received over a plurality of copper telephone loops involve receiving a set of intermediate values, which correspond to estimates of the transmitted signals. The intermediate values are generated by applying a vectoring procedure to initial samples of the received signals. The intermediate values are demodulated. At least one demodulated value is selected as a final estimate of a corresponding transmitted signal. The initial samples are then refined by removing each initial sample that has a corresponding selected demodulated value. The vectoring procedure, the demodulating, the selecting, and the refining are each repeated using the refined samples in place of the initial samples to generate new intermediate values that have reduced noise. | 09-18-2014 |
20140269948 | METHOD AND APPARATUS FOR MULTI-CARRIER MODULATION (MCM) PACKET DETECTION BASED ON PHASE DIFFERENCES - A method is disclosed for detecting packet at a receiving system in a Multi-Carrier Modulation (MCM) system. The method starts with receiving a signal at the receiving system. Then a deviation value of the signal is computed, where the deviation value is computed at least partially based on phase differences between some number of carriers in the preamble. The deviation value is compared with a threshold to determine whether a packet has been detected from the received signal. In response to the determination that a packet has been detected, a symbol offset is computed optionally, where the symbol offset indicates a number of sample points from a beginning of a symbol. | 09-18-2014 |
20140269949 | METHOD AND APPARATUS FOR PHASE-BASED MULTI-CARRIER MODULATION (MCM) PACKET DETECTION - A method is disclosed for detecting packet at a receiving system in a Multi-Carrier Modulation (MCM) system. The method starts with receiving a signal at the receiving system. Then during the plurality of symbol durations, a set of phases of the signal for each symbol duration is obtained, where each phase is a phase of a carrier of the number of carriers. Then a set of phase variances for each carrier of the number of carriers is obtained, where each phase variance is a difference of phases of a carrier in different symbol durations. Then a phase variance value based on the set of phase variances is computed and it is compared with a threshold to determine whether a packet has been detected from the received signal. | 09-18-2014 |
20140269950 | Power Line Communication Device that is Resilient to Cross-Band Interference - A Power Line Communication (PLC) device that is resilient to cross-band interference. The PLC device is configured to communicate on AC power wiring in the frequency range of 9 kilohertz to 500 kilohertz and does not use automatic gain control prior to analog-to-digital conversion. The PLC device includes an over-sampled analog-to-digital converter with a sample clock of at least 10 megahertz and includes a loop filter that maintains a noise power spectral density that does not exceed three decibels above a minimum noise floor, of the noise power spectral density, at 80 kilohertz or above, and a digital filter and decimator configured to remove quantization noise, where a decimation factor of the decimator is such that it provides an output decimation rate between 350 kilohertz and 1.6 megahertz. | 09-18-2014 |
20140269951 | PORTABLE AUDIO NETWORKING SYSTEM - A portable audio networking system is provided that includes master devices and slave devices in communication over cables adapted to simultaneously transport a digital audio signal, DC power, and a data signal. Master devices are configured to receive a digital audio signal, distribute power, and transceive a data signal, and slave devices are configured to transmit the digital audio signal to master devices, receive the power from master devices, and transceive the data signal with master devices. Slave devices can include wireless audio receivers that receive an RF signal containing an audio signal from wireless audio transmitters. Master devices can include gateway interconnection devices that act as hubs and routers for the system. The reduction in the number of cables compared to traditional systems results in less weight for crew members to carry and easier setup of the system. Remote control of wireless audio transmitters is also enabled. | 09-18-2014 |
20140286444 | Wi-Fi/BPL Dual Mode Repeaters for Power Line Networks - A method and apparatus for maintaining network connectivity over power lines is disclosed. Such network connectivity is maintained even if various customers are covered by different power line networks or if one or more power lines in a network are unavailable to transmit data. More particularly, in order to bridge a gap in a power line network, one or more messages are extracted from a first node in a power line network and are then transmitted to a second node via free space transmission, illustratively wireless radio frequency (RF) transmission conforming to one or more of the 802.11a, b or g standards. When those messages are received at the second node, the message is injected back into the power line on the other side of a gap in power line coverage. This method of transmission backup will continue until power line connectivity is restore upon which the preferred method will be selected and used. | 09-25-2014 |
20140286445 | TRANSMITTER, COMMUNICATIONS SYSTEM AND METHOD FOR TRANSMITTING DATA SIGNALS - A transmitter for transmitting data signals to at least one communications device over a wired network on a plurality of carriers is provided, wherein the carriers are located in frequencies being allocated by one or more radio services, wherein each of the radio services is allocated to one or a plurality of frequency bands, the transmitter comprising a symbol generator configured to generate symbols based on the data signals; a processor configured to generate copies of the symbols and to determine an allocation of the copies onto the plurality of carriers, wherein a first copy and a second copy of each symbol are allocated to carriers located in frequency bands that are allocated to different radio services; and a modulator configured to modulate the copies of the symbols on the carriers in accordance with the determined allocation. | 09-25-2014 |
20140294103 | DATA COMMUNICATION OVER POWER SUPPLY LINES OF AN ELECTRONIC SYSTEM - Disclosed are various embodiments for communicating information between various electronic components. A local device may comprise a transmitter to convert communication signals into modulated signals. Modulated signals are injected into a shared power supply line. The remote device may comprise a receiver for identifying the injected signal, demodulating the injected signal, and processing the demodulated signal. | 10-02-2014 |
20140301490 | INGRESS-MITIGATED RF CABLE PLANTS AND INGRESS MITIGATION METHODS FOR SAME - An RF hardline coaxial cable plant to facilitate voice and/or data services to subscriber premises in one or more neighborhood nodes of a cable communication system by conveying upstream information over an upstream path bandwidth. One or more upstream radio frequency (RF) signals have a carrier frequency of between approximately 5 MHz and 19.6 MHz and are modulated using quadrature amplitude modulation (QAM) with voice and/or data information constituting at least some of the upstream information. An example RF signal defines a channel having an average channel power, and a highest value for an average noise power between 5 MHz and 19.6 MHz in the upstream path bandwidth of a given neighborhood node, as measured over at least a 24 hour period, is at least 25 decibels (dB) below the average channel power and/or less than 20 decibels (dB) above a noise floor associated with the neighborhood node. | 10-09-2014 |
20140301491 | POWER LINE DATA TRANSMITTER - A power line data transmitter includes a power circuit including a transistor and a modulation circuit. The transistor has an input terminal to which a voltage of a DC power source is inputted from a DC power line, a control terminal applied with a constant voltage bias, and an output terminal supplied with an electric power. The modulation circuit includes a power supply node, operates when the electric power is inputted, and outputs a data modulation signal. The power circuit functions as a data transmitter to perform a power line transmission. When the data modulation signal is outputted, (i) a potential of the output terminal changes, (ii) the power circuit changes a voltage between the control terminal and the output terminal, (iii) the power circuit changes another potential of the input terminal, and (iv) the power circuit superimposes the data modulation signal on the DC power line. | 10-09-2014 |
20140307809 | TRANSMISSION LINE - A transmission line matable to a differential signal source, includes a first connector having a impedor and a first differential terminal pair, a second connector having a conversion module and a second differential terminal pair, and a wire electrically connected to the first and the second connectors. A differential signal received by the first differential terminal pair of the first connector at one end of the transmission line is processed by the impedor and then is converted into a single-ended signal transmitted on the wire. Then the conversion module restores the single-ended signal to the differential signal, and the differential signal is output from the second differential terminal pair of the second connector at the other end of the transmission line. | 10-16-2014 |
20140307810 | Time-Domain Windowing Function - A smart utility network (SUN) device that includes an orthogonal frequency-division multiplexing (OFDM)-based transmitter. The OFDM-based transmitter including a signal processor to convert data from a frequency-domain to a time-domain using an inverse fast Fourier transform (IFFT) and configured to perform a time-domain windowing function based on a Hanning window on OFDM symbols. | 10-16-2014 |
20140307811 | SERIALLY CONNECTED POWER LINE COMMUNICATION APPARATUS AND POWER LINE COMMUNICATION METHOD THEREOF - Power line communication apparatuses, which are serially connected with power line. The power line communication apparatus may include a bypass unit to be serially connected to power line, and pass a communication signal that flows along the power line; a coupling circuit to be connected to two ends of the bypass unit, and couple the communication signal to the power line; an analog front end (AFE) unit to transform an input/output analog signal so that the input/output analog signal is transferred to the power line, and transfer the input/output analog signal to the coupling circuit unit; and a controller to transfer the communication signal, which is to be transferred through the power line to the AFE unit. | 10-16-2014 |
20140314160 | METHODS AND SYSTEMS FOR VEHICLE BROADBAND CONNECTION TO A DATA NETWORK - Methods and systems for communicating data between an aircraft and a ground-based unit are provided. The method includes integrating a Broadband over Power Line (BPL) module and inductive coupler into the ground-based unit, communicatively coupling the aircraft to the ground-based unit, initiating a Broadband over Power Line (BPL) link between the aircraft and the ground-based unit when power is supplied to the aircraft, and updating data stored in the aircraft with data received from the ground-based unit. | 10-23-2014 |
20140314161 | DIGITAL SIGNAL PROCESSING FOR PLC COMMUNICATIONS HAVING COMMUNICATION FREQUENCIES - Aspects of the present disclosure are directed toward receiver devices and methods of using receiver devices. One such method can include converting, using an analog-to-digital converter (ADC), and an analog input signal from power distribution lines that carry power using alternating current (AC) to a digital form. This input digital signal can be an oversampled digital signal, where the digital signal is oversampled relative to downstream processing (e.g., FFT-based processing). A processing circuit(s) can then be used to decimate the input digital signal according to a decimation rate. A reference signal can be generated by the processing circuit that is responsive to the decimation rate. The processing circuit can also be used to detect a change in a phase difference between the AC and reference signal and to modify, in response to detecting a change in the phase difference, the decimation rate to counteract the detected change in the phase difference. | 10-23-2014 |
20140328415 | POWER FACTOR CORRECTION FOR CONSTANT CURRENT INPUT WITH POWER LINE COMMUNICATION - The present disclosure provides techniques for power factor correction on a constant current system and also provides power line communications on the same power factor correction circuit. In one example embodiment, through controlled charging and draining of an input capacitor, the power factor correction circuit generates an input voltage which is in phase with the input current. Communication data is also embedded in the input voltage and/or input current by further charging and draining of the input capacitor according to a controlled switching scheme which includes both input current phase data and corresponding communication signals. | 11-06-2014 |
20140328416 | SELECTION DIVERSITY IN A POWERLINE COMMUNICATION SYSTEM - A network device can be configured to dynamically adapt its current primary receiver coupling to channel conditions. For each of a plurality of transmitting network devices, the network device can determine a potential primary receiver coupling of the first network device for receiving communications from the transmitting network device based, at least in part, on a performance measurement associated with each of the plurality of communication channels between the network device and the transmitting device. The network device can select its current primary receiver coupling based, at least in part, on the potential primary receiver couplings determined for the plurality of transmitting network devices. In addition, the network device can also determine how to communicate with a receiving network device based, at least in part, on a preferred communication channel between the two network devices and a current primary receiver coupling of the receiving network device. | 11-06-2014 |
20140328417 | POWER LINE COMMUNICATION DEVICE SWITCHABLE BETWEEN NOISE DETECTING AND FILTERING FUNCTIONS - The present invention is to provide a PLC device, which includes a power receiving port connected to a power supply for receiving a power signal and a network signal carried by the power signal; a filtering unit having a first end connected to the power receiving port; a power output port connected to a second end of the filtering unit and a load, respectively, for supplying the power signal to the load while the filtering unit filters out noise generated in the power signal by the load; a switching unit having two connecting ends connecting to the first and second ends, respectively, and a control end switchable between the two connecting ends; and a processing unit connected to the control end and including a bridge module for receiving and then transmitting the network signal to a network apparatus, and a detection module for detecting the level of the noise. | 11-06-2014 |
20140328418 | DIFFERENTIAL TRANSMISSION CIRCUIT - A differential transmission circuit comprises a sending unit that generates a pair of differential signals from an input signal, and sends the differential signals; a receiver that receives the differential signals sent by the sending unit; and a transmission path that transmits the differential signals from the sending unit to the receiver, wherein the sending unit has a selector that selects one of the input signal and a signal obtained by inverting a polarity of the input signal, and generates the differential signals from the signal selected by the selector. | 11-06-2014 |
20140334560 | RECEIVING DEVICE, SIGNAL PROCESSING DEVICE, AND SIGNAL PROCESSING METHOD - A receiving device according to the present invention includes: a receiver for receiving an OFDM symbol that is modulated by phase shift keying; an FFT processor for applying an FFT process to the received OFDM symbol to obtain a subcarrier signal; a demapping unit for demapping the subcarrier signal to generate a bit string; a norm calculator for calculating the norm of the subcarrier; a weighting factor generator for generating a weighting factor by taking the statistics of the calculated norm; and a weighting unit for obtaining a soft decision value by weighting the bit string after demapping, based on the particular weighting factor. Thus, the receiving device can obtain a soft decision value to achieve good decoding performance with a small number of known signals and processes. | 11-13-2014 |
20140341309 | AIRCRAFT DATA TRANSMISSION USING PHASE SEPARATION - Provided are methods and systems for terrestrial data transmission between aircrafts and external networks connected to gates at airports. This type of data transmission is performed through an electrical power cable that includes multiple conductors interconnecting electrical components of an aircraft and a gate. Each conductor may be used to establish a separate broadband over power line (BPL) communication channel using its own frequency range that does not overlap with frequency ranges of other channels. As such, no radio frequency (RF) shielding is needed in the cable and any standard multi-conductor cable may be used. A channel management unit is used to control allocation of data domains among different communication channels depending on characteristics of the data domains, characteristics of the channels, and other factors. For example, one channel may be designated for secure data transfer of specific data domains, such as aircraft control data. | 11-20-2014 |
20140348251 | METHOD FOR TRANSMITTING A SIGNAL VIA A POWER LINE NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each channel including a respective feeding port of at least one transmitter and the respective receiving port of the at least one transmitter and transmitter including at least two feeding ports. The method: determines a channel characteristic of each of the channels; applies a feeding port selection criterion based on the channel characteristic; and selects an excluded feeding port among the at least two feeding ports based on the feeding port selection criterion, wherein the excluded feeding port is not used during further communication. A corresponding power line communication modem can implement the method. | 11-27-2014 |
20140355697 | EXTRACTING ZERO CROSS INFORMATION IN A POWERLINE COMMUNICATION DEVICE - A powerline communication (PLC) device can be configured to execute functionality for zero cross sampling and detection. When the PLC device is directly coupled to a high-voltage PLC network, the PLC device can comprise printed safety capacitors in series with a high-voltage input AC powerline signal to safely couple the high-voltage AC powerline signal to the low-voltage processing circuit. The PLC device can also comprise an ADC to sample a scaled AC powerline signal and to obtain zero cross information. When the PLC device is part of an embedded PLC application, dynamic loading can affect the integrity of a low voltage zero cross signal that is used to extract zero cross information. After digitizing the zero cross signal, the PLC device can execute functionality to minimize/eliminate voltage drops caused by dynamic loading and obtain the zero cross information. | 12-04-2014 |
20140355698 | COMMUNICATION DEVICE USING POWER LINE COMMUNICATION AND FREQUENCY-DIVISION MULTIPLEXING ON A PILOT LINE, AND RELATED SYSTEMS - The invention relates to a communication device using power line communication provided in a first system coupled to a second system via a power cable comprising a pilot line having a first impedance, which encounters at least second and third impedances and through which a first analog signal passes in a first frequency band. The device is arranged so as to: i) generate, from a local digital signal, a second analog power line communication signal having frequencies included in a second frequency band that has minimal overlap with the first frequency band; ii) supply the second analog signal to the pilot line via a capacitive means and iii) extract, from the analog signals passing through the pilot line, each second analog signal in order to convert the latter into a digital signal to be processed by the system. | 12-04-2014 |
20140355699 | DEVICE FOR COMMUNICATION BETWEEN AN ELECTRONIC MODULE AND A SENSOR - A device for communication between a microcontroller ( | 12-04-2014 |
20140362932 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND STORAGE MEDIUM - In a communication system, communication apparatuses provided with their respective antennas are wiredly connected in serial, and a control apparatus receives a signal based on a radio signal received by one of the communication apparatuses. In the system, one of the communication apparatuses determines whether reception quality of a radio signal received via the antenna thereof satisfies predetermined quality, and transmits, to a second communication apparatus or the control apparatus that is wiredly connected thereto, a signal based on the received radio signal if the reception quality satisfies the predetermined quality, and a signal based on a wired signal received from a first communication apparatus wiredly connected thereto if the reception quality does not satisfy the predetermined quality. | 12-11-2014 |
20140369430 | METHOD AND APPARATUS FOR REDUCING THE POWER OF A SIGNAL ELECTROMAGNETICALLY COUPLED FROM A PLC MEDIUM TO A DSL MEDIUM - Reducing a power of a signal electromagnetically coupled from a PLC medium to a digital subscriber line (DSL) medium. The method involves transmitting a data signal over the PLC medium at a first average power level from one of a plurality of PLC transmitters coupled to the PLC medium, then measuring first noise associated with a first signal received at a DSL receiver coupled to the DSL communication medium caused at least in part by the data signal transmitted over the PLC medium at a second average power level from the one PLC transmitter, the second average power level different than the first average power level, followed by measuring second noise associated with a second signal received at the DSL receiver coupled to the DSL communication medium caused at least in part by the data signal transmission over the PLC medium at the second average power level. A transmit power spectral density (PSD) for the data signal transmitted by the one PLC transmitter over the PLC medium is then changed, based on a difference between the first noise and the second noise, such that the changed transmit PSD for the data signal transmitted by the one PLC transmitter over the PLC medium reduces the power of the signal electromagnetically coupled from the PLC medium to the DSL medium caused by the data signal transmission from the one PLC transmitter over the PLC medium. | 12-18-2014 |
20140369431 | CARRIER COMMUNICATION METHOD AND SYSTEM BASED ON CHARGING-DISCHARGING OF ELECTRIC VEHICLE AND CARRIER DEVICE - A carrier communication method and system based on charging-discharging of an electric vehicle and a carrier device are disclosed. The carrier communication method comprises: determining whether a carrier signal from a peripheral apparatus is detected at an interface harness and if yes, determining whether the carrier signal is correct, when the electric vehicle is powered on to start; when the electric vehicle detects the carrier signal and the carrier signal is correct, receiving the carrier signal via the interface harness; and performing a coupling and filtering on the carrier signal to convert the carrier signal into a standard carrier signal and demodulating the standard carrier signal into a digital signal to obtain information about the peripheral apparatus. | 12-18-2014 |
20140369432 | DIVISION OF BIT STREAMS TO PRODUCE SPATIAL PATHS FOR MULTICARRIER TRANSMISSION - A device for bit-demultiplexing in a multicarrier MIMO communication system (e.g. precoded spatial multiplexing MIMO communication systems using adaptive OFDM), including a multicarrier MIMO transmitter and a multicarrier MIMO receiver. The multicarrier MIMO transmitter includes a demultiplexer and symbol mapper unit receiving an input bit stream and generating a plurality of symbol streams, each symbol stream being associated with a different transmission channel and including a plurality of data symbols, each data symbol being attributed to a different carrier; one or more multicarrier modulators generating at least two multicarrier modulated signals based on the symbol streams; and at least two transmit ports respectively transmitting the at least two multicarrier modulated signals, wherein a data throughput rate of each transmission channel is separately variable. | 12-18-2014 |
20140376646 | HYBRID WI-FI AND POWER ROUTER TRANSMITTER - The present disclosure may provide an hybrid transmitter which may be used to provide wireless power transmission (WPT). In some embodiments, hybrid transmitters may include antenna elements designed to transmit WI-Fi signal or to function as power router which may function simultaneously. In other embodiments, hybrid transmitters may only transmit a single signal and a switch may change the operation mode. In addition, transmitters may include communications components which may allow for communication to various electronic equipment including phones, computers and others. | 12-25-2014 |
20150010093 | SYSTEM AND METHODS FOR INFERRING THE FEEDER AND PHASE POWERING AN ON-GRID TRANSMITTER - A system and method for inferring the feeder and phase of a transmitter on a plurality of electrical distribution lines. The system may include a low-voltage electrical distribution grid having one or more phases and one or more lines, a mechanism for transmitting a measuring data, a mechanism for receiving the measuring data, and a mechanism that analyzes the transmitted data to infer the phase and feed on which the transmission is injected. | 01-08-2015 |
20150010094 | METHOD FOR COMMUNICATION AND VALIDATION OF ELECTRICAL SIGNALS - The various embodiments herein provide an improved system for communicating data over a wired connection. The system comprising a transmitting end, a switching circuit provided at the transmitting end to generate a propagating signal disturbance according to an input signal data received from a source network, a receiving end and a receiver circuit provided at the receiving end to detect the propagating signal disturbance and to regenerate the transmitted signal data from the received signal. The propagated signal disturbance is detected at the receiving end without a need for a common ground reference. The propagating disturbance is created by inducing an electron distribution change at one end of the wired connection and propagated along the length of the wire. The propagating disturbance is generated using one of an inductor, a capacitor and a switching device. | 01-08-2015 |
20150023437 | SYSTEMS AND METHODS FOR PHYSICAL SECURITY OF INFORMATION FLOWS OVER A POWER CABLE CONNECTION - An aircraft includes a first electrical connector configured to couple with a first power cable, a first data communication network and a first modem coupled to first electrical connector and first data communication network and is configured to transmit data received at first electrical connector through first power cable to first data communication network and to transmit data from first data communication network to first power cable through first electrical connector. The aircraft additionally includes a second electrical connector configured to couple with a second power cable, a second data communication network and a second modem coupled to second electrical connector and to second data communication network and is configured to transmit data received at second electrical connector through second power cable to second data communication network and to transmit data from second data communication network to second power cable through second electrical connector. | 01-22-2015 |
20150023438 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, POWER SUPPLY DEVICE, AND VEHICLE - A communication system, a communication device, a power supply device, and a vehicle are provided, which can suppress occurrence of communication abnormality while suppressing noise applied to a power supply line to be lower than a predetermined upper limit value of a standard, in communication such as inband communication in which a vehicle and a power supply device are connected to each other via a charging cable containing the power supply line and a control line, and a communication signal is transmitted and received using the control line as a medium. A power supply device | 01-22-2015 |
20150043660 | CLOSED-CIRCUIT POWER LINE COMMUNICATION SYSTEM FOR LARGE CAPACITY LOAD - The present invention relates to a power line communication system for a large capacity load which greatly improves the recognition ratio and accuracy of a communication signal even for a large capacity load in that it: includes a switch unit as a transmission means wherein a first switch made of semiconductor elements and a second switch made of relay elements are connected in parallel; and generates and transmits a communication signal by selectively using the switches. | 02-12-2015 |
20150043661 | MULTI-HOP COMMUNICATION SYSTEM, AND SLAVE UNIT - A master unit and a plurality of slave units perform a multi-hop communication. The plurality of slave units include hybrid slave units are configured to select at least one of wireless communication and power line carrier communication. One hybrid slave unit includes a function of reporting, to the other hybrid slave unit in which a hop number in the power line carrier communication between the one hybrid slave unit and the other hybrid slave unit is one, the minimum route cost when the wireless communication is used for a channel on an upper side. The one hybrid slave unit includes a function of adopting the power line carrier communication when a route cost reported by the other hybrid slave unit is smaller than the minimum route cost of the one hybrid slave unit, and otherwise adopting the wireless communication. | 02-12-2015 |
20150043662 | CHARGING COMMUNICATION SYSTEM AND CHARGING EQUIPMENT - In a charging communication system in which a charging control device performs communication between an electric vehicle and a charging equipment, the electric vehicle is equipped with a first communication device and a second communication device both configured to communicate with the charging equipment by using the same signal line in the charging cable; and a signal line connection device configured to switch connection/disconnection between the second communication device and the signal line. The charging control device, which controls a battery on the electric vehicle, calculates an amount of change in a signal line voltage between before and after the signal line connection device connects the second communication device to the signal line, and the charging control device causes, when the amount of change does not fall within a predetermined allowable range, the signal line connection device to disconnect the second communication device from the signal line. | 02-12-2015 |
20150043663 | SERIAL COMMUNICATION APPARATUS - A serial communication apparatus includes a slew rate control circuit, an output circuit, a detection circuit, and a switching circuit. The slew rate control circuit has a predetermined impedance, and supplies a constant current from an output according to an input signal. In the output circuit, first capacitance is charged and discharged by the constant current from the slew rate control circuit. The output circuit outputs a digital signal from an output terminal according to a drive voltage. The noise detection circuit detects noise propagated from the output terminal, and outputs a switching signal according to a detection result. The switching circuit switches an impedance of the slew rate control circuit to a value smaller than the predetermined impedance according to the switching signal. | 02-12-2015 |
20150043664 | COMMUNICATION APPARATUS, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD - A communication apparatus repeatedly outputs a first multi-carrier signal SS during predetermined periods T1, T2, T3, . . . , and outputs a second multi-carrier signal RS whose phase vector is different from that of the first multi-carrier signal SS, at a predetermined timing based on the first multi-carrier signal SS. The communication apparatus further detects the second multi-carrier signal RS output from another communication apparatus, which uses a different communication method from the communication apparatus. Accordingly, both communication apparatuses can differentiate the first multi-carrier signal SS from the second multi-carrier signal RS without performing relatively cumbersome modulation and other processes. | 02-12-2015 |
20150049822 | PILOT TONE FOR AMPLIFIER BIAS POINT - Methods and systems for using a signal to generate a pilot tone to modulate the bias point of an amplifier that amplifies the signal. | 02-19-2015 |
20150049823 | FULL BAND CABLE RECEIVER - Systems and methods are described for the implementation of a full band cable receiver by using a combination of tuners (e.g., ultra-low power Tuners) and Analog-to-Digital Converters (ADCs) to attain the goal of digitization with reduced power and/or cost. The full-band capture cable receiver can overcome the constraints of conventional cable receiver systems and deliver multiple channels, thereby allowing operators to provide consumers with an increased number of services. | 02-19-2015 |
20150055717 | RECEIVE ATTENUATION SYSTEM FOR TRAINLINE COMMUNICATION NETWORKS - A receive attenuation system for a trainline communication system utilizing an intra-consist electrical cable has an analog front end amplifier, a trainline communication processor, an adjustable attenuator, and a gain controller. The trainline communication processor is configured to generate a receive gain control signal configured to control receive gain of the analog front end amplifier. The adjustable attenuator is capable of being coupled to the intra-consist electrical cable and configured to variably attenuate signals received from the intra-consist electrical cable before transmitting the signals to the analog front end amplifier. The gain controller is coupled to the adjustable attenuator and configured to detect the receive gain control signal generated by the trainline communication processor, determine a supplemental attenuation control value based on the detected receive gain control signal, and control the adjustable attenuator according to the supplemental attenuation control signal. | 02-26-2015 |
20150055718 | RECEIVER FOR SIDEBAND MITIGATION COMMUNICATION SYSTEMS AND METHODS FOR INCREASING COMMUNICATION SPEEDS, SPECTRAL EFFICIENCY AND ENABLING OTHER BENEFITS - Common wave and sideband mitigation communication systems and methods are provided that can be used with both wireless and wired communication links. The systems and methods provided can enable faster data rates, greater immunity to noise, increased bandwidth/spectrum efficiency and/or other benefits. Applications include but are not limited to: cell phones, smartphones (e.g., iPhone, BlackBerry, etc.), wireless Internet, local area networks (e.g., WiFi type applications), wide area networks (e.g., WiMAX type applications), personal digital assistants, computers, Internet service providers and communications satellites. | 02-26-2015 |
20150055719 | Feedback impedance control for driving a signal - A system for driving a first signal onto a wireline includes a driver and feedback circuitry. The driver drives a deterministic signal onto the wireline with an unknown impedance load. The feedback circuitry measures a quality of the output signal from the wireline and modifies a gain of the first signal based on the quality of the output signal. The driver then drives the first signal onto the wireline with the modified gain. | 02-26-2015 |
20150063473 | POWER ELECTRONICS DEVICE, COOPERATIVE CONTROL METHOD AND NON-TRANSITORY COMPUTER READABLE MEDIUM - According to one embodiment, there is provided a power electronics device in which a controlling unit selects a first power electronics device and a second power electronics device from power electronics devices, based on power attribute information and communication attribute information of each power electronics device, and the first power electronics device is a master of power allocation control of electric energy that the power electronics devices connected to one power line of power lines perform input and output on the one power line, and the second power electronics device is a master of output power phase synchronization control of power which the power electronics devices connected to the one power line outputs to the one power line. | 03-05-2015 |
20150071364 | Power Line Communication using Padding to Overcome Interleaver Failings - In a method for transmitting frames of data across a physical media that has a selective frequency response, a packet of data bytes is received by a media access (MAC) layer of a communication protocol from a local application for transmission to a remote receiver. The packet of data bytes is padded to from a padded packet of data bytes having a predetermined frame length, wherein the predetermined frame length is a frame length that is predetermined to provide correct transmission of a frame of data across the physical media that has a selective frequency response. The padded packet of data bytes is encoded by a physical (PHY) layer of the communication protocol to form multiple tone symbols. The multi-tone symbols are then transmitted on the physical media to the remote receiver. | 03-12-2015 |
20150078462 | LINE CURRENT DIFFERENTIAL PROTECTION METHOD AND SYSTEM USING BROADBAND POWER LINE CARRIER OVER HIGH VOLTAGE TRANSMISSION LINES - A method and system for connecting to line protection relays and providing a communications channel between a first end and a second end of high voltage transmission lines for digital Line Current Differential Protection are disclosed. At each of the first end and the second end of the high voltage transmission lines, a Broadband Power Line Carrier (BPLC) gateway device is connected to the line protection relay. The BPLC gateway has a coupling device to physically attach to the line and is configured to transmit and receive data communications over the high voltage transmission lines so as to allow the protection relays to communicate with each other via the existing high voltage transmission lines. | 03-19-2015 |
20150078463 | METHOD AND APPARATUS FOR POWER LINE COMMUNICATIONS DISTORTION COMPENSATION - A method and apparatus for harmonic distortion compensation in power line communications. In one embodiment, the method comprises analyzing a waveform generated by a transmitter of a power line communications transceiver (PLCT), wherein the waveform is analyzed to determine harmonic information for one or more harmonics of a carrier waveform of the PLCT; computing, based on the harmonic information, one or more harmonic compensation coefficients; and pre-distorting, based on the one or more harmonic compensation coefficients, the carrier waveform such that the one or more harmonics are reduced below a threshold. | 03-19-2015 |
20150078464 | FILTER CIRCUITRY - Embodiments provide methods, devices, circuitry and systems for supporting or implementing functionality to provide a filtering circuit, and for providing a transmitter, receiver or transceiver system incorporating the same. One embodiment provides a circuit for filtering signals. The circuit comprises a first connection configured to be connected to a signal line carrying varying signal voltage and a second connection. The circuit also comprises a first circuit portion comprising a parallel resonant circuit having a variable capacitance connected in parallel with a first inductor; and a second circuit portion comprising a second inductor. The first circuit portion and the second circuit portion are connected in series between the first connection and the second connection. | 03-19-2015 |
20150092868 | TWACS TRANSMITTER AND RECEIVER - As disclosed, a two-way automatic communications system (TWACS) and method are used by an electrical utility in which outbound messages are sent from the utility to a consumer and inbound messages are sent from the consumer to the utility. The respective outbound and inbound messages are sent and received over the utility's power distribution system. A receiver including an analog filter component, an A/D converter and a digital processor detects the outbound messages. A substation transceiver is configured for sending analog outbound messages from the utility to a consumer. A transponder is configured for sending inbound messages to the transceiver from the consumer to the utility, the respective outbound and inbound messages being modulated on a mains signal of the utility's power distribution system. The receiver in another form includes an analog filter component, a detecting circuit and a demodulator. | 04-02-2015 |
20150092869 | Interface with Variable Data Rate - A device includes a transmitter coupled to a node, where the node is to couple to a wired link. The transmitter has a plurality of modes of operation including a calibration mode in which a range of communication data rates over the wired link is determined in accordance with a voltage margin corresponding to the wired link at a predetermined error rate. The range of communication data rates includes a maximum data rate, which can be a non-integer multiple of an initial data rate. | 04-02-2015 |
20150098514 | Techniques for Generating Bit Log-Likelihood Ratios in Communication Systems Using Differential Modulation - A technique for generating a bit log-likelihood ratio (LLR) in a communication system includes generating a demodulated signal based on a received symbol and a reference symbol. An input for a bit LLR generator is generated based on the demodulated signal and a normalization value that is based on the received symbol or the reference symbol. A bit LLR is generated for the received symbol, using the bit LLR generator, based on the input. | 04-09-2015 |
20150098515 | AUTOMATIC GAIN CONTROL FOR POWER LINE COMMUNICATION - A system includes an analog front end (AFE) unit to be coupled to a power line network, and a controller coupled to the AFE unit. More specifically, the AFE unit is to receive a packet signal from the power line network wherein, based on a first gain parameter, the AFE unit is to amplify the received packet signal. The controller is configured to calculate a root-mean-square (RMS) power of the amplified packet signal. Further, the AFE unit is to calculate a second gain parameter based on the calculated RMS power of the amplified packet signal and the first gain parameter, wherein the second gain parameter is to be used to amplify the received packet signal instead of the first gain parameter. | 04-09-2015 |
20150103931 | SEMICONDUCTOR DEVICE AND RECEIVER - A semiconductor device contains a narrow band noise detector section to detect narrow band noise in an input signal that is input by way of a power line. The semiconductor device further includes a reference signal generator section to generate a second reference signal whose amplitude value which corresponds to the narrow band noise frequency of a pre-established first reference signal is reduced, and a correlation calculation section to calculate the correlation value between the input signal and the second reference signal utilized in the frame synchronization processing of the input signal. | 04-16-2015 |
20150110205 | Non-Disruptive Network Noise Measurement - Presented herein are non-disruptive noise estimation techniques that utilize a correlation between attributes of a received signal and the noise to generate estimated noise values for symbols of the signal. More specifically, a digital signal comprising symbols transmitted over a telecommunications network is received. For each of a plurality of the symbols, an estimated noise value associated with the respective symbol is generated through a correlation of a log-likelihood ratio (LLR) value to predetermined noise values. The estimated noise values for the plurality of symbols are used to generate noise information representing time and frequency characteristics of noise in the telecommunications network. | 04-23-2015 |
20150117556 | COMMUNICATION DEVICE AND COMMUNICATION SYSTEM - Provided are a communication device and a communication system which are used for communication such as power line communication or inband communication in which a communication signal is superposed on lines contained in a charging cable, when a vehicle including a power storage device is charged from a power supply device, and which suppress a noise component such as harmonic distortion caused by occurrence of ringing without greatly affecting the communication signal, when transmitting the communication signal by switching from an idle state to an operating state. A transmission circuit included in a communication device of a vehicle includes line drivers, and the line drivers transmit a communication signal via two signal lines. In the two signal lines connected to the transmission circuit, inductance elements, resistance elements, and capacitance elements are interposed in series, respectively. | 04-30-2015 |
20150124889 | POWER LINE COMMUNICATION DEVICE WITH NOISE DETECTING AND FILTERING FUNCTIONS - The present invention is to provide a PLC device having noise detecting and filtering functions, which includes a power receiving port having one end connected to a power supply unit for receiving a power signal and a network signal; a noise filtering circuit having one end connected to the other end of the power receiving port for filtering noise of the power signal passing therethrough; a power output port connected between the other end of the noise filtering circuit and a load; a noise detecting circuit having two ends connected to a line between the first filtering unit and power receiving port and a line between the first filtering unit and power output port, respectively; and a processing unit connected to a line between the first filtering unit and power receiving port for receiving the network signal from the noise detecting circuit and transmitting the same to a network apparatus. | 05-07-2015 |
20150124890 | POWER LINE COMMUNICATION ADAPTER CAPABLE OF BEING FREELY ASSEMBLED BY ACCESSORIES THEREOF - The present invention is to provide a power line communication adapter capable of being freely assembled by accessories thereof, which includes an anti-noise device having a first male plug for receiving a power line communication signal from a power outlet, a first female socket for connecting the first male plug with an electrical equipment through a filter module, and a first adapting port connected to the first male plug, such that noise generated by the electrical equipment device can be filtered by the filter module without interfering the power line communication signal; and a power line communication device having a power line communication module along with a second adapting port connected thereto such that, when the first and second adapting ports are connected with each other, the power line communication device and the anti-noise device are combined into an anti-noise adapter for receiving and transmitting the power line communication signal. | 05-07-2015 |
20150124891 | APPARATUS, SYSTEMS AND METHODS FOR IMPULSE NOISE DETECTION AND MITIGATION - In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for impulse noise detection and mitigation. For example, in one embodiment such means include, means for detecting impulse noise; means for classifying the detected impulse noise into one of a plurality of impulse noise classes affecting communications on a Digital Subscriber Line (DSL line); means for selecting a noise mitigation strategy from among a plurality of noise mitigation strategies; means for applying the selected noise mitigation strategy; and means for validating application of the noise mitigation strategy. | 05-07-2015 |
20150124892 | RADIO COMMUNICATION SYSTEM AND METHOD - A radio communications system includes a communication radio and an antenna module positioned external to the communication radio. An antenna cable connects the radio and the antenna module. The radio superposes a power voltage for operating the antenna module on a signal line of the antenna cable and transmits to the antenna module through the antenna cable a control signal that controls a gain of a transmission amplifier and duplexers while the transmission signal is not transmitted therethrough. In such manner, a control of the antenna module is enabled without affecting the transmission signal. | 05-07-2015 |
20150139340 | SYSTEM AND METHOD FOR DIGITAL SIGNALING - Systems and methods for communicating digital data associated with amplitudes and phases of a virtual periodic waveform having a designated period between components connected by n conductors include, in one embodiment, circuitry that converts a first amplitude and a first phase to a first corresponding voltage or current and applies the first corresponding voltage or current to a first one of the plurality of conductors, and converts the first amplitude and the first phase to (n−1) corresponding voltages or currents based on amplitudes of the periodic waveform phase shifted by about m*(360/n) relative to the first phase where m is indexed from one to (n−1) and applies each corresponding voltage or current to an associated conductor of the plurality of conductors. The systems and methods are particularly suited for reducing the number of conductors to obtain a desired I/O data rate/throughput for integrated circuit chips and wired networks. | 05-21-2015 |
20150139341 | METHOD AND ARRANGEMENT FOR TRANSMITTING DATA VIA AN ELECTRIC CONDUCTOR OF A CURRENT NETWORK - A method transmits data via an electric conductor of a current network. At least one first node and at least one second node are coupled to the electric conductor by a respective impedance-transparent coupling device. The method involves transmitting a carrier signal by the first node via the electric conductor, rectifying the transmitted carrier signal at the second node in order to supply energy to the second node, and modulating the transmitted carrier signal by the second node using a load modulation in order to transmit response data to the first node. The method is suitable in particular for low-maintenance and inexpensive sensor applications in current networks. An arrangement is used to transmit data via the electric conductor of a current network. | 05-21-2015 |
20150146799 | SOCKET - Provided is a socket including a socket body and a jack, wherein a network communication module is arranged inside the socket body; and the network communication module is connected with a mains line; and the network communication module is configured to provide a user with transmission of a network signal of the Internet through the mains line. The network communication module is arranged inside the socket body to provide the user with transmission of the network signal of the Internet through the mains line, so that the function to access the Internet through the mains line by means of the socket is enabled, to thereby address the problems of one of limited jack locations occupied, a part of an indoor space occupied and some of resources wasted for a wall-plugged power modem. | 05-28-2015 |
20150146800 | CONDITIONING DEVICE AND METHOD FOR CONDITIONING A DATA CHANNEL OF A CELL OF AN ELECTRICAL ENERGY STORE - A conditioning device for conditioning a data channel of a cell of a multicell electric energy store is designed to condition a signal frequency, suitable for transmitting data via the data channel, and/or an alternating current resistance of the data channel. | 05-28-2015 |
20150295705 | WIRELESS TRANSMISSION SYNCHRONIZATION USING A POWER LINE SIGNAL - A gateway may be configured to synchronize transmissions of a plurality of faulted circuit indicators (FCIs). The gateway may determine a time delay from a zero crossing of a power line signal and obtain network information from the at least one FCI from the plurality of FCIs. The gateway may identify a proximate FCI that is closest to a gateway based on at least one link parameter, and assign the determined time delay to the proximate FCI. The gateway may receive confirmations that at least one FCI received the determined time delay, and has synchronized transmissions based on the determined time delay and the zero crossings of the power signal. | 10-15-2015 |
20150295746 | DOWNSTREAM EXTERNAL PHYSICAL INTERFACE TRANSPORT IN DOCSIS 3.1 NETWORK ENVIRONMENTS - An example method for Downstream External Physical Interface (DEPI) in Data Over Cable Service Interface Specification (DOCSIS) 3.1 network environments is provided and includes generating, at a Converged Cable Access Platform (CCAP) core, a DEPI-Packet Streaming Protocol (PSP) pseudo-wire (PW) packet including a PSP sub-layer header having a same length for a Quadrature Amplitude Modulation (QAM) channel and an Orthogonal Frequency-Division Multiplexing (OFDM) channel in the DOCSIS network environment, and transmitting the DEPI-PSP PW packet over a DEPI interface to a remote physical layer (R-PHY) entity. | 10-15-2015 |
20150304134 | SERDES VOLTAGE-MODE DRIVER WITH SKEW CORRECTION - A driver circuit for transmitting serial data on a communication link combines voltage-mode and current-mode drivers. The driver circuit uses a voltage-mode driver as the main output driver. One or more auxiliary current-mode drivers are connected in parallel with the voltage-mode driver to adjust the output signal by injecting currents into the outputs. The voltage-mode driver supplies most of the output drive. Thus, the output driver circuit can provide the power efficiency benefits associated with voltage-mode drivers. The current-mode drivers can provide, for example, pre-emphasis, level adjustment, skew compensation, and other modifications of the output signals. Thus, the driver circuit can also provide the signal adjustment abilities associated with current-mode drivers. | 10-22-2015 |
20150304139 | NETWORK SIGNAL COUPLING CIRCUIT ASSEMBLY - A network signal coupling circuit installed in a circuit board and coupled between a network-on-chip and a network connector is disclosed to include a coupling module including a first capacitor connected in series to each wire of one respective two-wire channel of the signal coupling circuit thereof for coupling network signals and removing noises. Subject to the capacitance reactance characteristic that the signal attenuation is reduced when the frequency rises and the capacitive coupling characteristic that the signal coupling performance is enhanced when the frequency rises, the network signal coupling circuit assembly is practical for high frequency network applications to enhance signal coupling and transmission performance. | 10-22-2015 |
20150311951 | METHOD FOR USING POWER LINES FOR WIRELESS COMMUNICATION - The method is for providing broadband access into a dwelling ( | 10-29-2015 |
20150312070 | SCALABLE SERIAL/DE-SERIAL I/O FOR CHIP-TO-CHIP CONNECTION BASED ON MULTI-FREQUENCY QAM SCHEME - A serializer and de-serializer circuit which is particularly well-suited for use in communicating digital data from one integrated circuit (chip) to another for implementing chip-to-chip communications is presented. The circuits are scalable and utilize a multi-frequency quadrature amplitude modulation (QAM) mechanism for converting digital data bits from a parallel form into a serial analog stream for communication over a chip I/O connection. The serializer has multiple digital-to-analog converters (DACs) whose outputs are directed to QAM mixer inputs, within QAMs at multiple frequencies, whose outputs are summed into a single analog signal for communication over an I/O connection. The de-serializer amplifies the analog signal which is received by QAM mixers at different frequencies, whose outputs are low pass filtered and converted back to parallel digital data bits. | 10-29-2015 |
20150318892 | PATH DIVERSITY WITH POLY-PHASE LINKS IN A POWER LINE COMMUNICATION NETWORK - In one embodiment, a node in a network receives communication channel data regarding one or more communication channels available between a particular device in the network and a neighboring device. Each communication channel corresponds to one or more electrical phases over which the particular device can communicate with the neighboring device. The node also receives crosstalk data regarding an amount of crosstalk between the electrical phases over which the particular device can communicate with the neighboring device. The node then generates a routing path for the network based on the received crosstalk and communication channel data. | 11-05-2015 |
20150319013 | THREE PHASE AND POLARITY ENCODED SERIAL INTERFACE - A high speed serial interface is provided. In one aspect, the high speed serial interface uses three phase modulation for jointly encoding data and clock information. Accordingly, the need for de-skewing circuitry at the receiving end of the interface is eliminated, resulting in reduced link start-up time and improved link efficiency and power consumption. In one embodiment, the high speed serial interface uses fewer signal conductors than conventional systems having separate conductors for data and clock information. In another embodiment, the serial interface allows for data to be transmitted at any speed without the receiving end having prior knowledge of the transmission data rate. In another aspect, the high speed serial interface uses polarity encoded three phase modulation for jointly encoding data and clock information. This further increases the link capacity of the serial interface by allowing for more than one bit to be transmitted in any single baud interval. | 11-05-2015 |
20150326279 | DEVICE FOR POWER LINE COMMUNICATION, POWER LINE COMMUNICATIONS SYSTEM, METHOD FOR OPERATING A DEVICE FOR POWER LINE COMMUNICATION AND FOR ADAPTING PLC TRANSMISSIONS TO NOISE - A method for operating a device for power line communication includes measuring noise on the power line and detecting noise timing properties. Further, a method for adapting power line communication to detected noise timing properties, which may be asynchronous to the AC mains signal, includes adapting parameters for encoding a data stream and/or transmission parameters according to the detected noise timing properties and/or transmission timing information derived from the detected noise timing properties, encoding a data stream according to the adapted parameters for encoding, and transmitting the encoded data stream to the power line on at least one power line communications channel according to the adapted transmission parameters. | 11-12-2015 |
20150326280 | RECEIVER, APPARATUS, AND METHODS FOR WIRELESSLY RECEIVING DATA FROM A POWER INFRASTRUCTURE - Apparatuses, receivers, systems and methods for receiving data via a power line infrastructure. An exemplary apparatus includes a base station configured to receive a signal from a power line of a structure by coupling to the power line through an electrical outlet. The base station may include an impedance matching circuit configured to match an impedance of the power line of the structure, and a receiver coupled to the impedance matching circuit. The receiver may be configured to demodulate the signal received from the power line of the structure, convert the demodulated signal into a digital signal, and provide the digital signal to a decoder. | 11-12-2015 |
20150341084 | Method to Use a Preamble with Band Extension in Power Line Communications - Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line | 11-26-2015 |
20150343966 | HIGH SPEED DATA COMMUNICATION IN A VEHICLE - A system and method is provided for the high-speed transfer of data within a vehicle. The method includes the steps of: receiving at a high-speed transmitter non-video parallel data from a plurality of data sources in the vehicle; sampling the parallel data received from the plurality of data sources; serializing at the high-speed transmitter the parallel data from the plurality of data sources; and then transmitting via a low voltage differential signaling (LVDS) the parallel data to a high-speed receiver in the vehicle for deserialization while performing a sample and hold function as new parallel data is received at the high-speed transmitter during transmission, wherein the high-speed transmitter is configured to provide video data. | 12-03-2015 |
20150349844 | Long Preamble and Duty Cycle Based Coexistence Mechanism for Power Line Communication (PLC) Networks - Embodiments of methods and systems for supporting coexistence of multiple technologies in a Power Line Communication (PLC) network are disclosed. A long coexistence preamble sequence may be transmitted by a device that has been forced to back off the PLC channel multiple times. The long coexistence sequence provides a way for the device to request channel access from devices on the channel using other technology. The device may transmit a data packet after transmitting the long coexistence preamble sequence. A network duty cycle time may also be defined as a maximum allowed duration for nodes of the same network to access the channel. When the network duty cycle time occurs, all nodes will back off the channel for a duty cycle extended inter frame space before transmitting again. The long coexistence preamble sequence and the network duty cycle time may be used together. | 12-03-2015 |
20150349846 | POWER LINE COMMUNICATIONS ZONING DEVICE - A power line communications (PLC) network zoning device may include a housing, a power cord extending from the housing, and a plurality of power outlets mounted on the housing, the plurality of power outlets coupled to internal power lines within the housing. An isolation device disposed within the housing may transmit electrical power from the power cord to the internal power lines while isolating PLC communications traffic on the internal power lines from PLC communications traffic on the power cord. A bypass device internal to the housing may selectively transfer PLC communications traffic between the internal power lines and the power cord bypassing the isolation device. | 12-03-2015 |
20150358050 | ADAPTIVE MODULATION SYSTEM AND METHOD TO MINIMIZE ENERGY CONSUMPTION - A communication device includes a modulating component, a transmitting component and a controlling component. The modulating component generates a first modulated packet and a second modulated packet. The first modulated packet is based on a first modulation scheme and the second modulated packet is based on a second modulation scheme. The first modulation scheme has a first amount of energy associated therewith, and the second modulation scheme has a second amount of energy associated therewith. The first amount of energy is less than the second amount of energy. The transmitting component generates a transmit packet based on one of the first modulated packet and the second modulated packet. The controlling component generates a control signal to instruct the modulating component to generate the first modulated packet When the transmit packet will be less than a predetermined threshold. The threshold is based on the first amount of energy. | 12-10-2015 |
20150358051 | HIGHLY INTEGRATED VERY SMALL APERTURE TERMINAL (VSAT) APPARATUS AND METHOD - A method, and a VSAT capable of being configured for such a method, of configuring a VSAT, the steps of which are setting, while an outdoor unit of the VSAT is at a configuration location, a maximum value of the adjustable gain of the up-converting device and transmitting, from an operating location that is separate from the configuration location, transmission signals to the satellite at the transmission frequency and with a gain value of at most the maximum value of the adjustable gain set at the configuration location. | 12-10-2015 |
20150358253 | TRANSMISSION OF DATA OVER A LOW-BANDWIDTH COMMMUNICATION CHANNEL - Disclosed herein are various systems and methods that may improve the transmission of data over low-bandwidth communication channels in an electric power delivery system. Devices communicating across a low-bandwidth communication channel may implement several approaches, according to various embodiments disclosed herein, to reduce the data transmitted across the low-bandwidth communication channel and to prioritize the transmission of time-sensitive and/or more important information with respect to other data. Various embodiments disclosed herein may inspect packets to be transmitted across a low-bandwidth communication channel in order to identify high priority data. High priority data may be time-sensitive information, and accordingly, transmission of such data may be prioritized over other data in order to reduce transmission latency of the higher priority data. | 12-10-2015 |
20150365256 | MINIMIZING INTERFERENCE BETWEEN COMMUNICATION NETWORKS - Methods, systems, and devices are described for minimizing mutual interference between networks that implement different protocols. In one embodiment, a first network device of a first network may exchange coexistence information with a second network device of a second network to determine whether to share resources or reduce transmit power based, at least in part, on the interference detected at the first network device from a transmission of the second network device. In one embodiment, both the first and the second network devices may independently and iteratively reduce their respective transmit power to minimize interference between the interfering networks. The first network device may reduce its transmit power based on an interference of the second network device and vice versa. In another embodiment, the network device with a lower priority may minimize its transmit power to reduce interference with the network device with a higher priority. | 12-17-2015 |
20150365259 | MILLIMETER WAVE PHASE SHIFTERS USING TUNABLE TRANSMISSION LINES - Tunable phase shifters and methods for using the same include a signal line; one or more grounding lines; one or more crossing lines below the signal line in proximity to the signal line and substantially perpendicular to a longitudinal direction of the signal line, where the crossing lines conform to the shape of the signal line along at least three surfaces of the signal line and where the crossing lines have a tunable capacitance; and an inductance return line below the crossing lines substantially parallel to the longitudinal direction of the signal line, where the inductance return line provides a tunable inductance. | 12-17-2015 |
20150372718 | VARIABLE INPUT IMPEDANCE FOR POWERLINE COMMUNICATIONS - A powerline communication (PLC) device can receive a PLC signal transmitted through a powerline medium. The PLC device can compare a destination address of the PLC signal to a device address associated with the PLC device. The input impedance of the PLC device can be configured to an impedance value that is different from an impedance of the powerline medium when the destination address does not match the device address. The input impedance of the PLC device can be returned to an initial value when a PLC message included in the PLC signal is no longer received. | 12-24-2015 |
20150381235 | TRANSMITTER, COMMUNICATIONS SYSTEM AND METHOD FOR TRANSMITTING DATA SIGNALS - A transmitter for transmitting data signals to at least one communications device over a wired network on a plurality of carriers is provided, wherein the carriers are located in frequencies being allocated by one or more radio services, wherein each of the radio services is allocated to one or a plurality of frequency bands, the transmitter comprising a symbol generator configured to generate symbols based on the data signals; a processor configured to generate copies of the symbols and to determine an allocation of the copies onto the plurality of carriers, wherein a first copy and a second copy of each symbol are allocated to carriers located in frequency bands that are allocated to different radio services; and a modulator configured to modulate the copies of the symbols on the carriers in accordance with the determined allocation. | 12-31-2015 |
20160006479 | CABLE FOR TRANSMITTING SIGNAL - A cable for transmitting signals between two systems is disclosed. The cable provides a connector, which encloses a circuit unit comprising at least one of a transmitter and a receiver and plugged with the system, and a co-axial cable pulled out from the connector. The circuit unit includes at least a transmitter and a receiver. The transmitter receives an input signal in the differential form from the system and outputs a transmitting signal in the single-ended form to the co-axial cable. The receiver receives the transmitting signal in the single-ended form from the co-axial cable and outputs an output signal in the differential form to the system. | 01-07-2016 |
20160006482 | POWER LINE COMMUNICATION APPARATUS INCLUDING AC POWER SOCKET - A power line communication apparatus includes a mains power connector assembly with three or more first connectors connectable to a mains distribution network. A mains filter provides a filter path between each of its first ports and a corresponding one of second ports, wherein each first port is connected to one of the first connectors. Each second port is connected to one of three or more second connectors of an AC power socket. A power line communication unit is connected with each of the first ports and transmits and/or receives data according to a transmission method using more than one transmission channel between two devices connected via the mains distribution network. The mains filter improves PLC transmission quality by suppressing disturbances generated by the appliances and reduces PLC stray radiation. | 01-07-2016 |
20160013836 | Interference Control in a Broadband Powerline Communication System | 01-14-2016 |
20160013954 | Vector Signaling Codes with Increased Signal to Noise Characteristics | 01-14-2016 |
20160020825 | INPUT/OUTPUT SIGNAL PROCESSING CIRCUIT AND INPUT/OUTPUT SIGNAL PROCESSING METHOD - The present invention discloses an input/output (I/O) signal processing circuit and processing method. The I/O signal processing circuit includes a level adjustable I/O circuit and an adjustment circuit. The I/O signal processing circuit includes an output driver and/or an input comparator. The output driver transmits an output signal via a signal transmission line according to an output data. The output driver has an adjustable high operation voltage level and an adjustable low operation voltage level, which determine a high level and a low level of the output signal, respectively. The input comparator receives an input signal via the signal transmission line and comparing the input signal with an adjustable reference voltage, so as to generate an input data. The adjustment circuit generates an adjustment signal according to voltage drop related information, to correspondingly adjust the adjustable high and low operation voltage level and/or the adjustable reference voltage. | 01-21-2016 |
20160020826 | COMMUNICATION SYSTEM AND TRANSMITTER - According to an embodiment, a communication system includes a transmitting electrode, a first transmission line, a transmission circuit, a receiving electrode, a second transmission line and a reception circuit. The first transmission line includes one end connected to the transmitting electrode. The transmission circuit is connected to an other end of the first transmission line and configured to transmit a transmission signal. The receiving electrode is capacitively coupled to the transmitting electrode. The second transmission line includes one end connected to the receiving electrode. The reception circuit is connected to an other end of the second transmission line and configured to receive a reception signal via the receiving electrode and the second transmission line. Characteristic impedances of the first transmission line and the second transmission line are greater than an output impedance of the transmission circuit. | 01-21-2016 |
20160020827 | SYSTEM AND METHOD FOR ESTABLISHING COMMUNICATION WITH AN ARRAY OF INVERTERS - A system and method for establishing communication between a controller and a plurality of inverters comprises determining a response time window length and broadcasting a response request to the array of inverters that includes the response time window length. Each inverter, in response to receiving the response requests, transmits a response to the controller at a randomly determined response time within the response time window. In response to receiving an acknowledgement from the controller, the responding inverter may ignore subsequent response requests. The controller may adjust the response time window and broadcasts the new response time window until no inverter response is received for a pre-determined number of response time windows. | 01-21-2016 |
20160020828 | METHOD OF OPERATING COMMUNICATION NETWORKS, CORRESPONDING COMMUNICATION NETWORK AND COMPUTER PROGRAM PRODUCT - A method of operating a Power Line Communications (PLC) network including a plurality of nodes having wirelines extending therebetween for propagating PLC signals between said nodes over said wirelines. The method includes coupling to a set of nodes of the PLC network respective partitioning filters, which can be activated for countering propagation of the PLC signals through the nodes to which said partitioning filters are coupled. The method also includes selectively activating filters chosen from among said partitioning filters, so that said PLC network is partitioned into a plurality of sub-networks with the propagation of PLC signals between the various sub-networks countered by the activated partitioning filters. | 01-21-2016 |
20160020930 | Fine step blended modulation communications - A communication device is configured to perform symbol mapping of bits to generate modulation symbols using one or more modulations. The device may employ a blended modulation composed of bit labels or symbols having different numbers of bits per symbol and different modulations. For example, the device may symbol map bit labels/symbols having first number of bits per symbol to first modulation, and the device may symbol map labels/symbols having second number of bits per symbol to second modulation. The device may be configured to perform forward error correction (FEC) or error correction code (ECC) and coding of information bits to generate coded bits that subsequently undergo symbol mapping. The device may be configured to operate based on different operational modes based on substantially uniform steps of rates, or bits per symbol, and energy per bit or symbol to noise spectral density ratio (E | 01-21-2016 |
20160028324 | POWER-OVER-ETHERNET POWERED INVERTER - An apparatus may include a data management assembly and a DC to AC inverter assembly. The data management assembly may include a data input, a data output, and a power port. The data management assembly may be configured to receive in combination a data signal and a variable DC input voltage on the data input, separate the received data signal from the input voltage, output the data signal on the data output, and output the input voltage on the power port. The DC to AC inverter assembly may be configured to receive the input voltage from the power port, boost the input voltage to a predetermined DC stepped-up voltage that is constant for different input voltages, convert the stepped-up voltage to an AC voltage, and output the AC voltage on a power output. | 01-28-2016 |
20160028437 | METHODS, SYSTEMS, AND APPARATUS FOR THE MONITORING, CONTROLLING, AND COMMUNICATING OF LIGHTING SYSTEMS - Methods and apparatuses for monitoring, controlling, and communicating are disclosed, including splicing one or more control clamps to power lines of devices; establishing a PLC link between one or more powernet control communication cubes; connecting a PCCC to a communication gateway in order to enable communication from a remote device using a PCCC dashboard application; using a communication port of the one or more powernet control communication cubes to communicate between the one or more powernet control communication cubes; using the PLC link to communicate between the one or more powernet control communication cubes; using the one or more powernet control communication cubes with the spliced one or more control clamps to monitor and control the one or more devices; creating one or more RFID/Bluetooth beacons; and using one or more monitor sensors to monitor the area around the devices. Other embodiments are described and claimed. | 01-28-2016 |
20160028439 | Dynamic Mode Selection for MIMO Powerline Devices - A first communication device can dynamically select a mode of communication (such as a MIMO mode or a SISO mode) to improve throughput. In selecting the communication mode, the first communication device may determine whether a powerline medium effectively supports multi-channel communication. Even when the first communication device and a second communication device both are capable of using a MIMO mode, the first communication device may select a SISO mode if it determines that one of the channels is ill-conditioned for communication. For example, the powerline medium may be affected by a missing conductor, protective circuit, or other attenuation that impairs the second channel differently than the first channel. If the disparity between the first channel and the second channel is greater than a threshold, the first communication device may switch to a SISO mode to improve performance. | 01-28-2016 |
20160028441 | SYSTEM AND METHOD OF WIRELESSLY COMMUNICATING WITH MOBILE DEVICES - Systems and methods for providing network access to mobile devices that travel with a vehicle, such as a train, a bus, a boat. etc. along or adjacent to a relatively fixed path that may extend over a large geographic area. Mobile devices access the network through stationary access points arranged along or adjacent to the path and communicate with a communication network. The communication network may be arranged as an asynchronous transfer mode (ATM) local area network emulation (LANE) network. One of the mobile devices may be a mobile access point which can couple other mobile devices to the network and record authentication information of other mobile devices so that fast transitions can be made from one stationary access point to another as the vehicle moves along the path. | 01-28-2016 |
20160028515 | DIVISION OF BIT STREAMS TO PRODUCE SPATIAL PATHS FOR MULTICARRIER TRANSMISSION - A device for bit-demultiplexing in a multicarrier MIMO communication system (e.g. precoded spatial multiplexing MIMO communication systems using adaptive OFDM), including a multicarrier MIMO transmitter and a multicarrier MIMO receiver. The multicarrier MIMO transmitter includes a demultiplexer and symbol mapper unit receiving an input bit stream and generating a plurality of symbol streams, each symbol stream being associated with a different transmission channel and including a plurality of data symbols, each data symbol being attributed to a different carrier; one or more multicarrier modulators generating at least two multicarrier modulated signals based on the symbol streams; and at least two transmit ports respectively transmitting the at least two multicarrier modulated signals, wherein a data throughput rate of each transmission channel is separately variable. | 01-28-2016 |
20160036490 | Interference Cancellation in Coaxial Cable Connected Data Over Cable Service Interface Specification (DOCSIS) System or Cable Network - An apparatus comprising a first radio frequency (RF) frontend interface configured to receive a reference signal via a first signal path and a second RF frontend interface configured to receive an interference signal via a second signal path. The apparatus further comprises a first signal adjustment chain coupled to the first RF frontend interface and configured to reconstruct a first portion of the interference signal by adjusting a first signal property of a first reference signal portion of the reference signal, and a second signal adjustment chain coupled to the first RF frontend interface and configured to reconstruct a second portion of the interference signal by adjusting a second signal property of a second reference signal portion of the reference signal, wherein the reference signal and the interference signal are associated with a same source signal. | 02-04-2016 |
20160043773 | Sub-Band Power Scaling Reporting and Sub-Band Transmit Power Estimation - Systems and methods for routing protocols for power line communications (PLC) are described. In some embodiments, a method performed by a PLC device, such as a PLC meter, may include selecting one or more transmit sub-bands on which to transmit frames, where the transmit sub-bands comprise groups of carrier frequencies. The PLC device then generates a frame comprising a tone map that indicates which transmit sub-bands are used to carry data for the frame. The tone map using two bits per transmit sub-band to indicate a status of each transmit sub-band. The PLC device then transmits the frame on the selected transmit sub-bands. A resolution bit and a mode bit may be used to provide additional information about the transmit sub-bands, such as an amount of power adjustment that has been applied to carrier frequencies and whether dummy bits are transmitted on unused carrier frequencies. | 02-11-2016 |
20160049988 | SUPPRESSION OF INTERFERENCE IN POWER AND COMMUNICATIONS SIGNALS - A method of suppressing interference in a communication sent over a channel includes assessing characteristics of channel-induced distortion in a channel, and applying pre-distortion to a signal sent over the channel. The pre-distortion is based on the assessed characteristics of the channel-induced distortion. | 02-18-2016 |
20160049991 | ENERGY DELIVERY ON PATHS USED FOR COMMUNNICATION - Systems and methods for delivering energy on a bus used for communication between devices are provided. Systems and methods dynamically provide a predetermined recovery time between communication messages calculated from forward and response message types and/or length, and a model of the energy reserve in the network devices to allow time for energy storage circuits in the devices to charge. In addition or alternatively, systems and methods provide an extra recovery time between messages to allow the bus voltage to recover from a fold-back mode and/or include an extra current limit circuit to increase a power supply current when the combined energy required by the network devices is greater than a current limit on a power supply. | 02-18-2016 |
20160049992 | HIGH DATA RATE SERIAL LINK - A data transmission circuit transmits a data signal over a transmission line. A digital to analog converter (DAC) operates to receive N-bit input digital values for conversion to corresponding ones of 2 | 02-18-2016 |
20160056860 | WAVEGUIDE, WAVEGUIDE MANUFACTURING METHOD, AND WIRELESS TRANSMISSION SYSTEM - A waveguide includes: a dielectric including two surfaces, an electric field intersecting with the two surfaces; metal-plating layers coating the two surfaces of the dielectric, the electric field intersecting with the two surfaces; and a protective layer coating a periphery of the dielectric including the two surfaces coated with the metal-plating layers. A wireless transmission system includes: a sender configured to send a high-frequency signal; and a receiver configured to receive the high-frequency signal. The waveguide is used as a waveguide configured to transmit the high-frequency signal between the sender and the receiver in the wireless transmission system. | 02-25-2016 |
20160065391 | DIFFERENTIAL TRANSMISSION LINE WITH COMMON MODE NOTCH FILTER - A differential transmission line with a common mode notch filter includes adjacently arranged, repeating differential transmission line pair sections. The sections have lengths that are each equal to half of an electric wavelength of a lowest frequency of a common mode electromagnetic wave to be suppressed during transmission of an electric signal over the differential transmission line. Each section includes a pair of conductors separated from one another by a spacing. The width of each conductor and the spacing between the conductors of each section vary over the length thereof according to a same pattern such that at every point over the length of each section a differential mode impedance of the differential transmission line is identical. A common mode impedance of the differential transmission line changes periodically in accordance with the lengths of the sections. | 03-03-2016 |
20160066130 | POWER OUTLET AND METHOD OF USE - A power outlet for controlling power to an external device and transmitting data to the external device, the power outlet including: a housing containing at least one alternating-current power input connection; a power output connection; a data connector; a sensor module; a wireless communication module, including an antenna; a processing unit configured to receive data and control an electrically connected device through the power output connection and/or data connector based on the received data. | 03-03-2016 |
20160072550 | SUPPRESSION METHOD FOR STRONG INTERFERENCE NOISE OF CARRIER CHANNEL OF POWER LINE AND CIRCUIT STRUCTURE THEREOF - A suppression method for strong interference noise of power line carrier channel is based on the processing process to carrier signals transmitted in standardized frequency interval among power line transmission regional area. According to the situation of frequency lead or lagging carrier of strong interference noise, the pending signals are respectively transmitted to a first suppression circuit ( | 03-10-2016 |
20160072552 | ELECTRICAL INSTALLATION WITH IMPROVED GATEWAY MODULE - A gateway module for an electrical power grid, the gateway module configured to receive a power signal including a modulated component for conveying information from an electrical module producing electricity, and to process the power signal to provide a compatible signal to the electrical power grid. The gateway module includes a main unit including a control circuit controlling an interface to manage information from the modulated component of the power signal and a filtering circuit for filtering the modulated component. | 03-10-2016 |
20160072646 | APPARATUS COMPRISING A DIFFERENTIAL AMPLIFIER CIRCUIT AND AN EXTRACTION CIRCUIT - An apparatus with two pairs of lines including a first and second channel further includes a phantom channel that is implemented to provide a third channel without physically installing lines. Based on a differential signal, a first common-mode signal level is generated at a first output of a differential amplifier circuit, and a second common-mode signal level on a second output, and the first common-mode signal level is applied to the lines of the first pair of lines and the second common-mode signal level to the lines of the second pair of lines. An extraction circuit is implemented to extract common-mode portions on the lines of the first pair of lines and the lines of the second pair of lines. | 03-10-2016 |
20160080035 | METHOD AND APPARATUS FOR SENSING A CONDITION IN A TRANSMISSION MEDIUM OF ELECTROMAGNETIC WAVES - Aspects of the subject disclosure may include, for example, a device that facilitates transmitting electromagnetic waves along a surface of a wire that facilitates delivery of electric energy to devices, and sensing a condition that is adverse to the electromagnetic waves propagating along the surface of the wire. Other embodiments are disclosed. | 03-17-2016 |
20160080159 | METHOD AND APPARATUS FOR DISTRIBUTING POWER OF COMMUNICATION CABLING - A PoE powered device and method of operation are provided. The device includes a first port unit configured to negotiate receipt of a level of PoE power from a power sourcing equipment. The power is received on a first pair of taps on a first communication port. A detection unit is configured to detect a presence of a first optional circuit load and to detect a presence of a second optional power load. A control circuit is configured to establish connectivity between a second pair of taps on the first communication port and a second powered device port unit in response to the detection unit detecting the first optional load, and further configured to establish connectivity between the second pair of taps and a third pair of taps on a pass-through communication port in response to the detection unit failing to detect the first load and detecting the second load. | 03-17-2016 |
20160087671 | HIGH FREQUENCY CIRCUIT DEVICE - A high frequency circuit device that can avoid an occurrence of a stress concentration to a dielectric substrate during a temperature increase caused by a difference in coefficients of linear expansions of a chassis and a metal housing of a high frequency module is provided. | 03-24-2016 |
20160087823 | NON-RECIPROCAL COMPONENTS WITH BALANCED DISTRIBUTEDLY MODULATED CAPACITORS (DMC) - A non-reciprocal radio frequency transceiver front end utilizing multiple time-varying transmission lines (TVTLs) implemented using distributed modulated capacitors (DMC) to exploit time-varying properties of transmission line structures to isolate the transmit and receive signals. The TVTLs are coupled at an input side to an antenna and ground through a first 90 degree coupler, and the outputs of the TVTLs are coupled through a second 90 degree coupler for connection to a receiver and transmit circuit, respectively. The apparatus allows simultaneously operating a transmitter and receiver sharing a single antenna (or single antenna array). | 03-24-2016 |
20160094272 | SIGNAL ROUTING WITH REDUCED CROSSTALK - Generally, this disclosure provides systems and devices for reduction of crosstalk between routed signals. A system may include a first pair of signal lines and a second pair of signal lines and each of the pairs of signal lines include a positive signal line and a negative signal line to transmit a differential signal. The system may also include an alternating current coupling capacitor (AC cap) associated with each of the positive signal lines and each of the negative signal lines. The system may further include a routing crossover of the positive signal line and the negative signal line of the second pair of signal lines, to decrease signal crosstalk between the first and second pairs of signal lines. The routing crossover may include at least one of the AC caps. | 03-31-2016 |
20160094274 | METHOD AND APPARATUS FOR MANAGING A POWER LINE COMMUNICATION NETWORK IN MULTI-FLOW ENVIRONMENTS - A method for managing a power line communication network in a multi-flow environment. The method includes determining an average throughput between each pair of nodes acting in isolation within the power line communication network, defining logical zones by grouping each pair of nodes if the average throughput between the pair of nodes exceeds a first threshold, wherein the logical zones include a plurality of strongly coupled zones. The method further includes determining an aggregate throughput for a pair of flows between randomly selected pairs of nodes acting concurrently between the plurality of strongly coupled zones, determining a plurality of pair of flows that can be concurrently operated when the aggregate throughput exceeds the average throughput, estimating a resulting throughput of the plurality of pair of flows that can be concurrently operated, and optimizing a schedule for the plurality of pair of flows based on the resulting throughput. | 03-31-2016 |
20160094275 | TRANSCEIVER FRONT-END FOR COMMUNICATION OVER POWER LINES - Various circuits and methods are disclosed for communications over AC power lines. In one example embodiment, a power line communication circuit includes an analog front end having a data-coupling circuit configured to communicatively couple communication signals to and from a set of AC power lines in the power line communication system. The analog front end also includes a noise reduction circuit that is coupled to the data-coupling circuit. The noise reduction circuit is configured to mitigate noise within a communication frequency band of the communication signals by filtering, from the communication signals, at least one frequency that is located outside of the communication frequency band and that has harmonics located within the communication frequency band and to demodulate data from the communication frequency band of the filtered communication signals. | 03-31-2016 |
20160094373 | SYSTEM AND METHOD FOR PREAMBLE DETECTION IN MIMO NARROWBAND POWER LINE COMMUNICATIONS - A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation. | 03-31-2016 |
20160099749 | CIRCUIT PANEL NETWORK AND METHODS THEREOF - To provide network connectivity in a building using existing electrical wiring and circuitry, a circuit panel network system is provided to interface between a network connection and the electrical circuit. Traditional breakers on the electrical panel that provide overload circuit-protection devices can be replaced with circuit breaker devices that have transceivers and power line communication chipsets in addition to overload circuit-protection devices. A network interface unit that receives broadband network connectivity from a network demarcation point inside or outside the building can wirelessly transfer data to and from the circuit breaker devices, which then distribute the data over the electrical circuits via the power line communication chipsets on the circuit breaker devices | 04-07-2016 |
20160099821 | POWER LINE CARRIER/COMMUNICATIONS WITH IMPROVED IMMUNITY FOR TRANSIENTS AND ELECTROMAGNETIC INTERFERENCES - Power line carriers (PLCs) are susceptible to transients and electromagnetic interference (EMI) on the power line. To address transients and EMI on the power line, an improved power PLC involves transmitting a signal over the power line using a controlled current source, where the current source is modulated by the signal. The current source output is designed to be independent of the voltage on the power line and the load, and thus, is less susceptible to transients and EMI on the power line. The system architecture of the improved PLC also allows for simple, predictable, and flexible termination. In an example implementation in the automotive industry, the improved high frequency PLC may provide a low cost replacement for existing communication interfaces. The improved PLC may consolidate system in-vehicle communication, reduce in-vehicle wiring, provide system flexibility, and decrease vehicle weight and system cost. | 04-07-2016 |
20160105217 | METHOD FOR TRANSMITTING A SIGNAL VIA A POWER LINE NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each channel including a respective feeding port of at least one transmitter and the respective receiving port of the at least one transmitter and transmitter including at least two feeding ports. The method: determines a channel characteristic of each of the channels; applies a feeding port selection criterion based on the channel characteristic; and selects an excluded feeding port among the at least two feeding ports based on the feeding port selection criterion, wherein the excluded feeding port is not used during further communication. A corresponding power line communication modem can implement the method. | 04-14-2016 |
20160105255 | METHOD AND APPARATUS FOR ADJUSTING A MODE OF COMMUNICATION IN A COMMUNICATION NETWORK - Aspects of the subject disclosure may include, for example, a waveguide system for detecting a condition that adversely affects a propagation of electromagnetic waves generated by the waveguide system on a surface of the wire, and adjusting characteristics of the electromagnetic waves generated by the waveguide system to reduce adverse effects caused by the condition. Other embodiments are disclosed. | 04-14-2016 |
20160111877 | Digital Power Receiver System - Digital power is regulated by transmitting digital power via a transmission line pair to at least one receiver circuit in a digital power receiving system. The digital power is converted into analog power in the receiver circuit. The analog power is transmitted to at least one power conditioning circuit, and output power is transmitted from the power conditioning circuit. At least one voltage in the digital power receiver system is monitored; and, in response to that monitoring, the output power from the power conditioning circuit is regulated to improve at least one of safety, efficiency, resiliency, control, and routing of power. | 04-21-2016 |
20160112094 | GUIDED-WAVE TRANSMISSION DEVICE WITH DIVERSITY AND METHODS FOR USETHEREWITH - Aspects of the subject disclosure may include, for example, a transmission device that includes a first coupler that guides a first electromagnetic wave to a first junction to form a second electromagnetic wave that is guided to propagate along the outer surface of the transmission medium via one or more guided-wave modes. These mode(s) have an envelope that varies as a function of angular deviation and/or longitudinal displacement. Other embodiments are disclosed. | 04-21-2016 |
20160112095 | LEAKY CABLE COMMUNICATION - The present invention relates to a wireless communication arrangement comprising a node and a leaky cable running between a first and second converter arrangement. The first converter arrangement connects a first downlink signal and a second downlink signal to the cable, and converts the second downlink signal from a first frequency to a second frequency. The cable's other end is connected to the second converter arrangement which converts the second downlink signal from the second frequency to the first frequency. The second converter arrangement also converts a first uplink signal from a third frequency to a fourth frequency. The first converter arrangement receives the converted first uplink signal from the second converter arrangement and converts it from the fourth frequency to the third frequency. The first frequency is separated from the second frequency, and the third frequency is separated from the fourth frequency. | 04-21-2016 |
20160112548 | BUILDING, TRANSMITTING, AND RECEIVING FRAME STRUCTURES IN POWER LINE COMMUNICATIONS - Methods for building, transmitting, and receiving frame structures in power line communications (PLC) are described. Various techniques described herein provide a preamble design using one or more symbols. One or more preamble symbols may be interspersed within a header portion of a PLC frame to facilitate estimation of a frame boundary and/or sampling frequency offset, for example, in the presence of impulsive noise. | 04-21-2016 |
20160119027 | ASYMMETRIC CHANNELS IN POWER LINE COMMUNICATIONS - Apparatus (and related methods) for a power line communication network include a processor configured to receive beacons over a communication interface. The processor determines a link quality indicator (LQI) for each received beacon and ignores the beacons for at most a predetermined maximum number of beacon receptions when each LQI is below a threshold. The processor responds to a received beacon if the LQI for such received beacon exceeds the threshold or if a predetermined maximum number of beacons have been received with LQIs below the threshold. | 04-28-2016 |
20160119028 | COEXISTENCE PRIMITIVES IN POWER LINE COMMUNICATION NETWORKS - Systems and methods for setting a carrier-sensing mechanism in a PLC node are disclosed. In a PLC standard, coexistence is achieved by having the nodes detect a common preamble and backing off by a Coexistence InterFrame Space (cEIFS) time period to help the node to avoid interfering with the other technologies. In one embodiment, a PHY primitive is sent from the PHY to the MAC know that there has been a preamble detection. A two-level indication may be used - one indication after receiving the preamble and other indication after decoding the entire frame. The MAC sets the carrier-sensing mechanism based on the preamble detection. | 04-28-2016 |
20160119034 | COVERED WIRE COUPLING TYPE INFORMATION COMMUNICATION NETWORK, ELECTROMAGNETIC FIELD COUPLING COMMUNICATION METHOD AND ELECTROMAGNETIC FIELD COUPLER - This invention relates to a covered wire coupling type information communication network, an electromagnetic field coupling communication method and an electromagnetic field coupler, which makes it possible to solve the problem with the mechanical contact system and the structure where wires are exposed in a connector. A first covered wire and a second covered wire are placed in close proximity to each other in a coupling unit, and electromagnetic coupling in the coupling unit creates a data connection between the first and second covered wire. | 04-28-2016 |
20160127010 | PREDICTIVE RECOMMENDATION ENGINE - Systems and methods for alerting a user device when an objective is mastered according to a piecewise Gaussian distribution updated according to a Bayesian method are disclosed herein. The system can include a user device having a network interface to exchange data with a server via a communication network, and an I/O subsystem to convert electrical signals to user interpretable outputs user interface. The system can include a server that can: receive a response from the user device; identify a user associated with the response; receive user attribute data; identify a next objective; provide a data packet from the aggregation of data packets to the user via the user device; receive a response from the user device; update the user attribute data according to a Bayesian method; and generate and provide an alert to the user device. | 05-05-2016 |
20160127157 | COMMON-MODE SUPPRESSOR BASED ON DIFFERENTIAL TRANSMISSION LINE - A common-mode suppressor for eliminating common-mode noise in high frequency differential data transmission systems and an associated method includes a long coiled differential transmission line configured to transfer data between a source and a load. The differential transmission line comprises a first conductive wire and a second conductive wire which are inductively and capacitively coupled and are laterally aligned or vertically aligned with each other. Further, the differential transmission line is matched for differential signals and un-matched for common-mode noise. | 05-05-2016 |
20160134332 | USING A POWER OVER ETHERNET DEVICE TO SUPPLY MULTIPLE DC POWER TO CONNECTED DEVICES AND APPLICATION THEREOF - The present invention disclosed a using a POE (Power over Ethernet) device to supply multiple DC (direct current) power to connected devices and application thereof, which is enables supplying different DC (direct current) voltages produced by a PD (Powered Device) module from a PSE (Power Source Equipment) of a POE (Power over Ethernet) device. The different DC voltage output is supplied for use by external devices, and uses a single POE power connection to enable supplying power to separated or interconnected type external devices. | 05-12-2016 |
20160142099 | TRACKING ASSET COMPUTING DEVICES - One or more processors send a signal from a first computing device to a second computing device through a hardwire connection. One or more processors determine a change between the signal as sent by the first computing device and the signal as received by the second computing device. The change is caused, at least in part, by the distance the signal travels. One or more processors determine a geo-location of the second computing device based, at least in part, on the change. | 05-19-2016 |
20160142100 | Device, System, and Method for Communicating with a Power Inverter Using Power Line Communications - A device, system, and method for communicating with a power inverter of an array of inverters includes transmitting a relay message from an inverter array controller to a relay inverter in response to failing to receive a response from at least one power inverter of the array. The relay inverter is configured to retransmit a message from the inverter array controller to a non-responsive power inverter of the array of inverters in response to receiving the relay message. The relay inverter may subsequently retransmit a reply received from the non-responsive power inverter to the inverter array controller or to another power inverter of the array of inverters. | 05-19-2016 |
20160142240 | METHOD AND APPARATUS FOR MULTI-CARRIER MODULATION (MCM) PACKET DETECTION BASED ON PHASE DIFFERENCES - A method is disclosed for detecting packet at a receiving system in a Multi-Carrier Modulation (MCM) system. The method starts with receiving a signal at the receiving system. Then a deviation value of the signal is computed, where the deviation value is computed at least partially based on phase differences between some number of carriers in the preamble. The deviation value is compared with a threshold to determine whether a packet has been detected from the received signal. In response to the determination that a packet has been detected, a symbol offset is computed optionally, where the symbol offset indicates a number of sample points from a beginning of a symbol. | 05-19-2016 |
20160149611 | INTERCONNECT ARRAY PATTERN WITH A 3:1 SIGNAL-TO-GROUND RATIO - An electronic device including a plurality of interconnects are orthogonally arranged in a grid pattern and evenly spaced by a first distance, the plurality of interconnects include: a first conductor pair with conductors arranged next to each other in a first direction, the first direction is oriented diagonally relative to the orthogonal grid pattern, a second conductor pair with conductors arranged next to each other in a second direction substantially perpendicular to the first direction, each conductor of the second conductor pair is spaced by the first distance from each signal conductor of the first conductor pair, and a third conductor pair with conductors arranged next to each other in a third direction substantially parallel to the first direction, each conductors of the third conductor pair is spaced by the first distance from one of the signal elements of the second conductor pair. | 05-26-2016 |
20160149614 | APPARATUS FOR POWERING A COMMUNICATION DEVICE AND METHODS THEREOF - Aspects of the subject disclosure may include, for example, a waveguide system for transmitting first electromagnetic waves via a coupler located in proximity to a transmission medium to generate second electromagnetic waves that propagate on an outer surface of the transmission medium, the transmission medium further providing a first power signal having a first operating frequency and a second power signal having a second operating frequency that differs from the first operating frequency. The waveguide system can further obtain energy from the first power signal for powering the waveguide system. Other embodiments are disclosed. | 05-26-2016 |
20160149615 | POWER BACK-OFF FOR LIMITING EMISSIONS AND POWER CONSUMPTION - Powerline communication (PLC) networks allow devices within a home, automobile, or other systems to communicate over existing wired powerline infrastructure. Active PLC networks can affect devices sharing the powerline infrastructure as well as wireless devices through radiated noise emissions. Provided in the present disclosure are exemplary techniques for reducing noise emissions and promoting coexistence of multiple PLC systems and/or non-PLC (e.g., wireless) systems. | 05-26-2016 |
20160149740 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A communication apparatus performs a communication using a communication frame corresponding to a predetermined frequency bandwidth including a first frequency bandwidth and a second frequency bandwidth. The communication frame includes a first communication channel that corresponds to the first frequency bandwidth and that has a plurality of subcarriers and a second communication channel that corresponds to the second frequency bandwidth and that has a plurality of subcarriers. The communication apparatus sets a first phase vector with respect to the first communication channel, sets a second phase vector with respect to the second communication channel, generates communication data by adjusting a phase of symbol data using the first phase vector and the second phase vector, and transmits the communication data using the communication frame. | 05-26-2016 |
20160156383 | DETECTION OF DEMAPPING ERRORS | 06-02-2016 |
20160156384 | POWER LINE COMMUNICATION DEVICE | 06-02-2016 |
20160156385 | BICYCLE COMPONENT AND BICYCLE COMMUNICATION SYSTEM | 06-02-2016 |
20160164432 | POWER-OVER-ETHERNET POWERED INVERTER - An apparatus may include a data management assembly and a DC to AC inverter assembly. The data management assembly may include a data input, a data output, and a power port. The data management assembly may be configured to receive in combination a data signal and a variable DC input voltage on the data input, separate the received data signal from the input voltage, output the data signal on the data output, and output the input voltage on the power port. The DC to AC inverter assembly may be configured to receive the input voltage from the power port, boost the input voltage to a predetermined DC stepped-up voltage that is constant for different input voltages, convert the stepped-up voltage to an AC voltage, and output the AC voltage on a power output. | 06-09-2016 |
20160164571 | TRANSMISSION MEDIUM AND COMMUNICATION INTERFACES AND METHODS FOR USE THEREWITH - Aspects of the subject disclosure may include, for example, a system for receiving first electromagnetic waves via a transmission medium without utilizing an electrical return path, and inducing second electromagnetic waves at an interface of the transmission medium without the electrical return path. In an embodiment, the first and second electromagnetic waves have a non-optical frequency range. Other embodiments are disclosed. | 06-09-2016 |
20160173301 | MODULATING COMMUNICATIONS BETWEEN PLATFORMS ONTO POWER DELIVERY RAILS | 06-16-2016 |
20160182258 | Arrangement for Connecting a Component to a Master Controller in a Motor Vehicle | 06-23-2016 |
20160197747 | CIRCUITS FOR EFFICIENT DETECTION OF VECTOR SIGNALING CODES FOR CHIP-TO-CHIP COMMUNICATION | 07-07-2016 |
20160204495 | CONNECTOR APPARATUS AND COMMUNICATION SYSTEM | 07-14-2016 |
20160204828 | RADIO BASED AUTOMATIC LEVEL CONTROL FOR LINEAR RADIO CALIBRATION | 07-14-2016 |
20160204831 | COMMUNICATION APPARATUS AND MOTOR CONTROL APPARATUS | 07-14-2016 |
20160254874 | SYSTEMS AND METHODS FOR SIGNAL FREQUENCY DIVISION IN WIRELESS COMMUNICATION SYSTEMS | 09-01-2016 |
20160254931 | TERMINATION CIRCUIT, AND INTERFACE CIRCUIT AND SYSTEM INCLUDING THE SAME | 09-01-2016 |
20190146169 | Hybridized Cable Assembly | 05-16-2019 |
20190149195 | PASSIVE ELECTRICAL COUPLING DEVICE AND METHODS FOR USE THEREWITH | 05-16-2019 |